The first day of a Hebrew month can coincide with the first day of a Gregorian month. Depending on the time span chosen, the level of coincidences can reach approximately 40%.
Three is the largest number of Hebrew months in any year whose first days can coincide with the first days of their corresponding Gregorian months.
The following shows all of the years between 5755H (1995g) and 5779H (2019g) in which at least one Hebrew month will have its first day coincide with the first day of its corresponding Gregorian month.
5755H (1995g) Adar-Feb Nisan-Apr Iyar-May 5758H (1997g) Heshvan-Nov 5760H (2000g) Elul-Sep 5763H (2003g) Sivan-Jun Tammuz-Jul 5766H (2006g) Tevet-Jan Adar-Mar 5768H (2008g) Elul-Sep 5771H (2011g) Av-Aug 5774H (2014g) Adar-Feb Nisan-Apr Iyar-May 5777H (2016g) Kislev-Dec 5779H (2019g) Elul-Sep
The last time that 3 Hebrew months in one year had a first day match with their corresponding Gregorian months was in 5755H (1995g). The next time this will happen will be in 5774H (2014g).
A quick examination of the above table will show that these coincidences do not occur on a regular 19 year cycle basis. The Heshvan-Nov coincidence of 5758H (1997g) does not correspond to the Kislev-Dec match of 5777H (2016g), which is 19 years later.
The 1500 year span 5261H (1500g) to 6760H (2999g) has been selected to demonstrate these Hebrew-Gregorian coincidences for all of the following tables.
Over the 1500 year period beginning with 5261H (1500g) and ending with 6760H (2999g), 429 Hebrew years will see at least one of their months share a first day with their Gregorian counterpart. The table below shows the actual years for these coincidences.
5261H (1501g) v'Adar-Mar 5264H (1503g) Tishrei-Oct 5266H (1506g) Av-Aug 5269H (1509g) Adar-Feb Nisan-Apr Iyar-May 5272H (1511g) Kislev-Dec 5275H (1514g) Tishrei-Oct 5277H (1517g) Sivan-Jun Tammuz-Jul 5280H (1520g) Shevat-Jan v'Adar-Mar 5283H (1522g) Heshvan-Nov 5288H (1528g) Adar-Feb 5291H (1530g) Heshvan-Nov Kislev-Dec 5293H (1533g) Elul-Sep 5299H (1539g) v'Adar-Mar 5302H (1541g) Heshvan-Nov 5307H (1547g) Adar-Feb Nisan-Apr Iyar-May 5310H (1549g) Kislev-Dec 5312H (1552g) Av-Aug 5318H (1558g) v'Adar-Mar 5321H (1560g) Tishrei-Oct 5326H (1566g) Shevat-Jan 5329H (1568g) Kislev-Dec 5331H (1571g) Elul-Sep 5337H (1576g) Tevet-Dec 5340H (1579g) Tishrei-Oct 5342H (1582g) Sivan-Jun Tammuz-Jul 5345H (1585g) Shevat-Jan 5348H (1588g) Tevet-Jan 5350H (1590g) Av-Aug 5353H (1593g) Sivan-Jun Tammuz-Jul 5356H (1596g) Shevat-Jan v'Adar-Mar 5359H (1598g) Tishrei-Oct 5361H (1601g) Sivan-Jun Tammuz-Jul 5364H (1604g) Nisan-Apr Iyar-May 5367H (1606g) Heshvan-Nov Kislev-Dec 5369H (1609g) Av-Aug 5372H (1612g) Sivan-Jun Tammuz-Jul 5375H (1615g) Shevat-Jan 5377H (1617g) Elul-Sep 5383H (1623g) Adar-Feb Nisan-Apr Iyar-May 5386H (1625g) Heshvan-Nov 5391H (1631g) Sivan-Jun Tammuz-Jul 5394H (1634g) v'Adar-Mar 5396H (1636g) Elul-Sep 5399H (1639g) Av-Aug 5402H (1642g) Adar-Feb Nisan-Apr Iyar-May 5405H (1644g) Tishrei-Oct 5407H (1647g) Elul-Sep 5413H (1652g) Kislev-Nov Tevet-Dec 5416H (1655g) Heshvan-Nov 5421H (1661g) Shevat-Jan 5424H (1663g) Heshvan-Nov 5426H (1666g) Elul-Sep 5435H (1674g) Tishrei-Oct 5437H (1677g) Sivan-Jun Tammuz-Jul 5440H (1680g) Adar-Feb 5443H (1682g) Kislev-Dec 5445H (1685g) Av-Aug 5448H (1688g) Nisan-Apr Iyar-May 5451H (1691g) Shevat-Jan 5454H (1693g) Tishrei-Oct 5456H (1696g) Sivan-Jun Tammuz-Jul 5459H (1699g) Shevat-Jan 5462H (1702g) Tevet-Jan Adar-Mar 5464H (1704g) Av-Aug 5467H (1707g) Sivan-Jun Tammuz-Jul 5470H (1710g) Adar-Feb Nisan-Apr Iyar-May 5473H (1712g) Tishrei-Oct 5481H (1720g) Kislev-Dec 5483H (1723g) Elul-Sep 5489H (1729g) Shevat-Jan 5492H (1731g) Tishrei-Oct 5500H (1740g) Tevet-Jan 5502H (1742g) Av-Aug 5505H (1745g) Sivan-Jun Tammuz-Jul 5508H (1748g) Shevat-Jan v'Adar-Mar 5511H (1750g) Tishrei-Oct 5513H (1753g) Av-Aug 5516H (1756g) Nisan-Apr Iyar-May 5519H (1758g) Kislev-Dec 5521H (1761g) Av-Aug 5524H (1764g) Sivan-Jun Tammuz-Jul 5527H (1767g) Shevat-Jan 5530H (1769g) Heshvan-Nov 5535H (1775g) Adar-Feb Nisan-Apr Iyar-May 5538H (1777g) Heshvan-Nov Kislev-Dec 5540H (1780g) Elul-Sep 5543H (1783g) Sivan-Jun Tammuz-Jul 5546H (1786g) v'Adar-Mar 5549H (1788g) Heshvan-Nov 5551H (1791g) Av-Aug 5554H (1794g) Adar-Feb Nisan-Apr Iyar-May 5557H (1796g) Kislev-Dec 5559H (1799g) Elul-Sep 5562H (1802g) Sivan-Jun Tammuz-Jul 5565H (1805g) Shevat-Jan 5568H (1808g) Tevet-Jan 5570H (1810g) Av-Aug 5573H (1813g) Adar-Feb Nisan-Apr Iyar-May 5576H (1816g) Adar-Mar 5579H (1818g) Tishrei-Oct 5581H (1821g) Sivan-Jun Tammuz-Jul 5584H (1824g) Shevat-Jan v'Adar-Mar 5587H (1826g) Heshvan-Nov Kislev-Dec 5592H (1832g) Nisan-Apr Iyar-May 5597H (1837g) Elul-Sep 5603H (1843g) Adar-Feb Nisan-Apr Iyar-May 5606H (1845g) Heshvan-Nov 5611H (1851g) Sivan-Jun Tammuz-Jul 5614H (1854g) Tevet-Jan Adar-Mar 5616H (1856g) Elul-Sep 5619H (1859g) Av-Aug 5622H (1862g) Adar-Feb Nisan-Apr Iyar-May 5625H (1864g) Tishrei-Oct 5627H (1867g) Elul-Sep 5633H (1872g) Kislev-Dec 5635H (1875g) Elul-Sep 5641H (1881g) Shevat-Jan 5644H (1883g) Heshvan-Nov 5646H (1886g) Elul-Sep 5652H (1892g) Tevet-Jan 5655H (1894g) Tishrei-Oct 5657H (1897g) Sivan-Jun Tammuz-Jul 5660H (1900g) Shevat-Jan 5663H (1902g) Heshvan-Nov Kislev-Dec 5665H (1905g) Elul-Sep 5671H (1911g) Tevet-Jan Adar-Mar 5674H (1913g) Heshvan-Nov 5679H (1919g) Adar-Feb Nisan-Apr Iyar-May 5682H (1922g) Tevet-Jan Adar-Mar 5684H (1924g) Av-Aug 5687H (1927g) Sivan-Jun Tammuz-Jul 5690H (1930g) Tevet-Jan Adar-Mar 5693H (1932g) Tishrei-Oct 5701H (1940g) Kislev-Dec 5703H (1943g) Elul-Sep 5712H (1951g) Tishrei-Oct 5720H (1960g) Tevet-Jan 5722H (1962g) Av-Aug 5725H (1965g) Sivan-Jun Tammuz-Jul 5728H (1968g) Adar-Mar 5731H (1970g) Tishrei-Oct 5733H (1973g) Sivan-Jun Tammuz-Jul 5736H (1976g) Nisan-Apr Iyar-May 5739H (1978g) Heshvan-Nov Kislev-Dec 5741H (1981g) Av-Aug 5744H (1984g) Sivan-Jun Tammuz-Jul 5749H (1989g) Elul-Sep 5755H (1995g) Adar-Feb Nisan-Apr Iyar-May 5758H (1997g) Heshvan-Nov 5760H (2000g) Elul-Sep 5763H (2003g) Sivan-Jun Tammuz-Jul 5766H (2006g) Tevet-Jan Adar-Mar 5768H (2008g) Elul-Sep 5771H (2011g) Av-Aug 5774H (2014g) Adar-Feb Nisan-Apr Iyar-May 5777H (2016g) Kislev-Dec 5779H (2019g) Elul-Sep 5785H (2025g) Tevet-Jan Adar-Mar 5788H (2027g) Heshvan-Nov Kislev-Dec 5793H (2033g) Shevat-Jan 5796H (2036g) Tevet-Jan 5798H (2038g) Elul-Sep 5804H (2044g) Tevet-Jan 5807H (2046g) Tishrei-Oct 5809H (2049g) Sivan-Jun Tammuz-Jul 5812H (2052g) Adar-Feb 5815H (2055g) Tevet-Jan Adar-Mar 5817H (2057g) Av-Aug 5820H (2060g) Nisan-Apr Iyar-May 5826H (2065g) Tishrei-Oct 5828H (2068g) Sivan-Jun Tammuz-Jul 5831H (2071g) Shevat-Jan 5834H (2073g) Heshvan-Nov Kislev-Dec 5844H (2084g) Elul-Sep 5847H (2087g) Sivan-Jun Tammuz-Jul 5850H (2090g) Adar-Feb Nisan-Apr Iyar-May 5853H (2092g) Heshvan-Nov 5855H (2095g) Av-Aug 5858H (2098g) Sivan-Jun Tammuz-Jul 5864H (2103g) Heshvan-Nov 5866H (2106g) Elul-Sep 5872H (2112g) Tevet-Jan 5875H (2114g) Tishrei-Oct 5877H (2117g) Sivan-Jun Tammuz-Jul 5880H (2120g) Adar-Mar 5883H (2122g) Tishrei-Oct 5885H (2125g) Av-Aug 5888H (2128g) Nisan-Apr Iyar-May 5891H (2130g) Kislev-Dec 5894H (2133g) Tishrei-Oct 5896H (2136g) Sivan-Jun Tammuz-Jul 5902H (2141g) Heshvan-Nov 5907H (2147g) Adar-Feb Nisan-Apr Iyar-May 5910H (2149g) Heshvan-Nov Kislev-Dec 5912H (2152g) Elul-Sep 5915H (2155g) Sivan-Jun Tammuz-Jul 5918H (2158g) Tevet-Jan Adar-Mar 5921H (2160g) Heshvan-Nov 5923H (2163g) Av-Aug 5926H (2166g) Adar-Feb Nisan-Apr Iyar-May 5929H (2168g) Kislev-Dec 5931H (2171g) Elul-Sep 5937H (2177g) Tevet-Jan Adar-Mar 5940H (2179g) Heshvan-Nov Kislev-Dec 5948H (2188g) Tevet-Jan 5950H (2190g) Elul-Sep 5956H (2196g) Shevat-Feb 5959H (2198g) Tishrei-Oct 5961H (2201g) Av-Aug 5964H (2204g) Sivan-Jun Tammuz-Jul 5969H (2209g) Elul-Sep 5975H (2215g) Shevat-Feb Nisan-Apr Iyar-May 5978H (2217g) Heshvan-Nov 5983H (2223g) Sivan-Jun Tammuz-Jul 5986H (2226g) Tevet-Jan Adar-Mar 5988H (2228g) Elul-Sep 5991H (2231g) Av-Aug 5994H (2234g) Shevat-Feb v'Adar-Apr Nisan-May 5997H (2236g) Tishrei-Oct 5999H (2239g) Elul-Sep 6005H (2244g) Kislev-Dec 6008H (2247g) Heshvan-Nov 6016H (2255g) Heshvan-Nov 6018H (2258g) Elul-Sep 6024H (2264g) Tevet-Jan 6027H (2266g) Tishrei-Oct 6029H (2269g) Sivan-Jun Tammuz-Jul 6032H (2272g) Adar-Mar 6035H (2274g) Kislev-Dec 6037H (2277g) Av-Aug 6040H (2280g) Nisan-Apr Iyar-May 6046H (2285g) Tishrei-Oct 6048H (2288g) Sivan-Jun Tammuz-Jul 6054H (2293g) Heshvan-Nov Kislev-Dec 6062H (2302g) Shevat-Feb v'Adar-Apr Nisan-May 6065H (2304g) Tishrei-Oct 6073H (2312g) Kislev-Dec 6075H (2315g) Elul-Sep 6084H (2323g) Tishrei-Oct 6092H (2332g) Tevet-Jan 6094H (2334g) Av-Aug 6097H (2337g) Sivan-Jun Tammuz-Jul 6100H (2340g) Adar-Mar 6103H (2342g) Tishrei-Oct 6105H (2345g) Av-Aug 6108H (2348g) v'Adar-Apr Nisan-May 6111H (2350g) Kislev-Dec 6113H (2353g) Av-Aug 6116H (2356g) Sivan-Jun Tammuz-Jul 6122H (2361g) Heshvan-Nov 6127H (2367g) Shevat-Feb v'Adar-Apr Nisan-May 6130H (2369g) Heshvan-Nov Kislev-Dec 6132H (2372g) Elul-Sep 6135H (2375g) Sivan-Jun Tammuz-Jul 6138H (2378g) Tevet-Jan Adar-Mar 6141H (2380g) Heshvan-Nov 6143H (2383g) Av-Aug 6146H (2386g) Shevat-Feb v'Adar-Apr Nisan-May 6149H (2388g) Kislev-Dec 6151H (2391g) Elul-Sep 6157H (2397g) Tevet-Jan Adar-Mar 6160H (2399g) Heshvan-Nov Kislev-Dec 6168H (2408g) Tevet-Jan 6170H (2410g) Elul-Sep 6176H (2416g) Tevet-Jan 6179H (2418g) Tishrei-Oct 6181H (2421g) Sivan-Jun Tammuz-Jul 6184H (2424g) Shevat-Feb 6187H (2427g) Tevet-Jan Adar-Mar 6189H (2429g) Av-Aug 6192H (2432g) Sivan-Jun Tammuz-Jul 6198H (2437g) Tishrei-Oct 6200H (2440g) Sivan-Jun Tammuz-Jul 6206H (2445g) Heshvan-Nov Kislev-Dec 6208H (2448g) Av-Aug 6216H (2456g) Elul-Sep 6219H (2459g) Av-Aug 6222H (2462g) Shevat-Feb v'Adar-Apr Nisan-May 6225H (2464g) Heshvan-Nov 6227H (2467g) Av-Aug 6230H (2470g) Sivan-Jun Tammuz-Jul 6233H (2473g) Tevet-Jan Adar-Mar 6236H (2475g) Tishrei-Oct 6238H (2478g) Av-Aug 6241H (2481g) Shevat-Feb v'Adar-Apr Nisan-May 6244H (2483g) Heshvan-Nov Kislev-Dec 6246H (2486g) Elul-Sep 6252H (2492g) Tevet-Jan 6254H (2494g) Elul-Sep 6260H (2500g) Shevat-Feb v'Adar-Apr Nisan-May 6263H (2502g) Kislev-Dec 6266H (2505g) Tishrei-Oct 6268H (2508g) Sivan-Jun Tammuz-Jul 6274H (2513g) Heshvan-Nov Kislev-Dec 6279H (2519g) Shevat-Feb v'Adar-Apr Nisan-May 6284H (2524g) Elul-Sep 6287H (2527g) Sivan-Jun Tammuz-Jul 6290H (2530g) Shevat-Feb v'Adar-Apr Nisan-May 6293H (2532g) Heshvan-Nov 6295H (2535g) Av-Aug 6298H (2538g) Shevat-Feb v'Adar-Apr Nisan-May 6301H (2541g) Tevet-Jan Adar-Mar 6303H (2543g) Elul-Sep 6306H (2546g) Sivan-Jun Tammuz-Jul 6309H (2549g) Shevat-Feb v'Adar-Apr Nisan-May 6312H (2551g) Heshvan-Nov Kislev-Dec 6320H (2560g) Tevet-Jan 6322H (2562g) Elul-Sep 6328H (2568g) Shevat-Feb 6331H (2570g) Tishrei-Oct 6339H (2579g) Tevet-Jan Adar-Mar 6341H (2581g) Av-Aug 6344H (2584g) Sivan-Jun Tammuz-Jul 6350H (2589g) Tishrei-Oct 6352H (2592g) Av-Aug 6358H (2597g) Kislev-Dec 6360H (2600g) Elul-Sep 6363H (2603g) Av-Aug 6366H (2606g) Shevat-Feb v'Adar-Apr Nisan-May 6369H (2608g) Kislev-Dec 6371H (2611g) Elul-Sep 6377H (2617g) Tevet-Jan Adar-Mar 6380H (2619g) Heshvan-Nov Kislev-Dec 6388H (2628g) Tevet-Jan 6390H (2630g) Elul-Sep 6396H (2636g) Tevet-Jan 6399H (2638g) Tishrei-Oct 6401H (2641g) Sivan-Jun Tammuz-Jul 6404H (2644g) Shevat-Feb 6407H (2647g) Tevet-Jan Adar-Mar 6409H (2649g) Av-Aug 6412H (2652g) v'Adar-Apr Nisan-May 6418H (2657g) Tishrei-Oct 6420H (2660g) Sivan-Jun Tammuz-Jul 6426H (2665g) Heshvan-Nov Kislev-Dec 6436H (2676g) Elul-Sep 6439H (2679g) Sivan-Jun Tammuz-Jul 6442H (2682g) Shevat-Feb v'Adar-Apr Nisan-May 6445H (2684g) Heshvan-Nov 6447H (2687g) Av-Aug 6450H (2690g) Iyar-Jun Sivan-Jul 6453H (2693g) Tevet-Jan Adar-Mar 6456H (2695g) Tishrei-Oct 6458H (2698g) Av-Aug 6464H (2704g) Tevet-Jan 6467H (2706g) Tishrei-Oct 6469H (2709g) Iyar-Jun Sivan-Jul 6472H (2712g) Adar-Mar 6475H (2714g) Tishrei-Oct 6477H (2717g) Av-Aug 6480H (2720g) v'Adar-Apr Nisan-May 6483H (2722g) Kislev-Dec 6486H (2725g) Tishrei-Oct 6488H (2728g) Iyar-Jun Sivan-Jul 6494H (2733g) Heshvan-Nov 6499H (2739g) Shevat-Feb v'Adar-Apr Nisan-May 6502H (2741g) Heshvan-Nov Kislev-Dec 6504H (2744g) Elul-Sep 6507H (2747g) Iyar-Jun Sivan-Jul 6510H (2750g) Tevet-Jan Adar-Mar 6513H (2752g) Heshvan-Nov 6515H (2755g) Av-Aug 6518H (2758g) Shevat-Feb v'Adar-Apr Nisan-May 6521H (2761g) Tevet-Jan Adar-Mar 6523H (2763g) Elul-Sep 6529H (2769g) Tevet-Jan Adar-Mar 6532H (2771g) Heshvan-Nov Kislev-Dec 6540H (2780g) Tevet-Jan 6542H (2782g) Elul-Sep 6548H (2788g) Shevat-Feb 6551H (2790g) Tishrei-Oct 6559H (2799g) Tevet-Jan Adar-Mar 6561H (2801g) Av-Aug 6564H (2804g) Iyar-Jun Sivan-Jul 6570H (2809g) Tishrei-Oct 6572H (2812g) Sivan-Jun Tammuz-Jul 6578H (2817g) Heshvan-Nov Kislev-Dec 6580H (2820g) Av-Aug 6588H (2828g) Elul-Sep 6591H (2831g) Av-Aug 6594H (2834g) Shevat-Feb v'Adar-Apr Nisan-May 6597H (2836g) Heshvan-Nov 6600H (2839g) Tishrei-Oct 6602H (2842g) Iyar-Jun Sivan-Jul 6605H (2845g) Tevet-Jan Adar-Mar 6608H (2847g) Tishrei-Oct 6610H (2850g) Av-Aug 6613H (2853g) Shevat-Feb v'Adar-Apr Nisan-May 6618H (2858g) Elul-Sep 6624H (2864g) Tevet-Jan 6627H (2866g) Heshvan-Nov 6632H (2872g) Shevat-Feb 6635H (2875g) Tevet-Jan Adar-Mar 6637H (2877g) Elul-Sep 6643H (2883g) Tevet-Jan Adar-Mar 6646H (2885g) Tishrei-Oct 6648H (2888g) Sivan-Jun Tammuz-Jul 6651H (2891g) Shevat-Feb v'Adar-Apr Nisan-May 6654H (2894g) Tevet-Jan Adar-Mar 6656H (2896g) Av-Aug 6662H (2902g) Shevat-Feb v'Adar-Apr Nisan-May 6665H (2904g) Heshvan-Nov 6667H (2907g) Av-Aug 6670H (2910g) Shevat-Feb v'Adar-Apr Nisan-May 6673H (2913g) Tevet-Jan Adar-Mar 6675H (2915g) Elul-Sep 6678H (2918g) Iyar-Jun Sivan-Jul 6681H (2921g) Shevat-Feb v'Adar-Apr Nisan-May 6684H (2923g) Heshvan-Nov Kislev-Dec 6692H (2932g) Tevet-Jan 6694H (2934g) Elul-Sep 6700H (2940g) Shevat-Feb 6703H (2942g) Heshvan-Nov 6705H (2945g) Elul-Sep 6711H (2951g) Tevet-Jan Adar-Mar 6714H (2953g) Tishrei-Oct 6716H (2956g) Iyar-Jun Sivan-Jul 6722H (2961g) Tishrei-Oct 6724H (2964g) Av-Aug 6730H (2969g) Kislev-Dec 6733H (2972g) Tishrei-Oct 6741H (2980g) Heshvan-Nov 6743H (2983g) Av-Aug 6746H (2986g) Shevat-Feb v'Adar-Apr Nisan-May 6749H (2988g) Heshvan-Nov Kislev-Dec 6752H (2991g) Tishrei-Oct 6754H (2994g) Iyar-Jun Sivan-Jul 6757H (2997g) Tevet-Jan Adar-Mar 6760H (2999g) Kislev-Dec
Rosh Hashannah last coincided with the first day of September on Saturday 1 Sep 987g (4748H). The event will next reoccur on Thursday 1 Sep 78,614g (82,374H).
Rosh Hashannah first coincided with the first day of October on Thursday 1 Oct 922g (4683H). This happened in the middle of the very heated calendar controversy between Aaron ben Meir of Palestine and Saadia ben Yosef of Babylon. For more details on the controversy please refer to
Rosh Hashannah last coincided with the first day of October on Thursday 1 Oct 1970g (5731H). Its next occurrence will be on Monday 1 Oct 2046g (5807H).
The following table shows all of the Rosh Hashannot which coincide with the first day of October for the 1500 Hebrew year period 5261H (1500/1g) up to 6760H (2999/3000g).
The frequency of the coincidence for this sampling period is about once in every 30 years. The actual frequency of such coincidence will vary depending on the sampling period selected.
5264H (1503g) Tishrei-Oct 5275H (1514g) Tishrei-Oct 5321H (1560g) Tishrei-Oct 5340H (1579g) Tishrei-Oct 5359H (1598g) Tishrei-Oct 5405H (1644g) Tishrei-Oct 5435H (1674g) Tishrei-Oct 5454H (1693g) Tishrei-Oct 5473H (1712g) Tishrei-Oct 5492H (1731g) Tishrei-Oct 5511H (1750g) Tishrei-Oct 5579H (1818g) Tishrei-Oct 5625H (1864g) Tishrei-Oct 5655H (1894g) Tishrei-Oct 5693H (1932g) Tishrei-Oct 5712H (1951g) Tishrei-Oct 5731H (1970g) Tishrei-Oct 5807H (2046g) Tishrei-Oct 5826H (2065g) Tishrei-Oct 5875H (2114g) Tishrei-Oct 5883H (2122g) Tishrei-Oct 5894H (2133g) Tishrei-Oct 5959H (2198g) Tishrei-Oct 5997H (2236g) Tishrei-Oct 6027H (2266g) Tishrei-Oct 6046H (2285g) Tishrei-Oct 6065H (2304g) Tishrei-Oct 6084H (2323g) Tishrei-Oct 6103H (2342g) Tishrei-Oct 6179H (2418g) Tishrei-Oct 6198H (2437g) Tishrei-Oct 6236H (2475g) Tishrei-Oct 6266H (2505g) Tishrei-Oct 6331H (2570g) Tishrei-Oct 6350H (2589g) Tishrei-Oct 6399H (2638g) Tishrei-Oct 6418H (2657g) Tishrei-Oct 6456H (2695g) Tishrei-Oct 6467H (2706g) Tishrei-Oct 6475H (2714g) Tishrei-Oct 6486H (2725g) Tishrei-Oct 6551H (2790g) Tishrei-Oct 6570H (2809g) Tishrei-Oct 6600H (2839g) Tishrei-Oct 6608H (2847g) Tishrei-Oct 6646H (2885g) Tishrei-Oct 6714H (2953g) Tishrei-Oct 6722H (2961g) Tishrei-Oct 6733H (2972g) Tishrei-Oct 6752H (2991g) Tishrei-Oct
Over the 1500 year sampling period, 262 Hebrew years have only one month whose first days coincide with the first day of their corresponding Gregorian month.
5261H (1501g) v'Adar-Mar 5264H (1503g) Tishrei-Oct 5266H (1506g) Av-Aug 5272H (1511g) Kislev-Dec 5275H (1514g) Tishrei-Oct 5283H (1522g) Heshvan-Nov 5288H (1528g) Adar-Feb 5293H (1533g) Elul-Sep 5299H (1539g) v'Adar-Mar 5302H (1541g) Heshvan-Nov 5310H (1549g) Kislev-Dec 5312H (1552g) Av-Aug 5318H (1558g) v'Adar-Mar 5321H (1560g) Tishrei-Oct 5326H (1566g) Shevat-Jan 5329H (1568g) Kislev-Dec 5331H (1571g) Elul-Sep 5337H (1576g) Tevet-Dec 5340H (1579g) Tishrei-Oct 5345H (1585g) Shevat-Jan 5348H (1588g) Tevet-Jan 5350H (1590g) Av-Aug 5359H (1598g) Tishrei-Oct 5369H (1609g) Av-Aug 5375H (1615g) Shevat-Jan 5377H (1617g) Elul-Sep 5386H (1625g) Heshvan-Nov 5394H (1634g) v'Adar-Mar 5396H (1636g) Elul-Sep 5399H (1639g) Av-Aug 5405H (1644g) Tishrei-Oct 5407H (1647g) Elul-Sep 5416H (1655g) Heshvan-Nov 5421H (1661g) Shevat-Jan 5424H (1663g) Heshvan-Nov 5426H (1666g) Elul-Sep 5435H (1674g) Tishrei-Oct 5440H (1680g) Adar-Feb 5443H (1682g) Kislev-Dec 5445H (1685g) Av-Aug 5451H (1691g) Shevat-Jan 5454H (1693g) Tishrei-Oct 5459H (1699g) Shevat-Jan 5464H (1704g) Av-Aug 5473H (1712g) Tishrei-Oct 5481H (1720g) Kislev-Dec 5483H (1723g) Elul-Sep 5489H (1729g) Shevat-Jan 5492H (1731g) Tishrei-Oct 5500H (1740g) Tevet-Jan 5502H (1742g) Av-Aug 5511H (1750g) Tishrei-Oct 5513H (1753g) Av-Aug 5519H (1758g) Kislev-Dec 5521H (1761g) Av-Aug 5527H (1767g) Shevat-Jan 5530H (1769g) Heshvan-Nov 5540H (1780g) Elul-Sep 5546H (1786g) v'Adar-Mar 5549H (1788g) Heshvan-Nov 5551H (1791g) Av-Aug 5557H (1796g) Kislev-Dec 5559H (1799g) Elul-Sep 5565H (1805g) Shevat-Jan 5568H (1808g) Tevet-Jan 5570H (1810g) Av-Aug 5576H (1816g) Adar-Mar 5579H (1818g) Tishrei-Oct 5597H (1837g) Elul-Sep 5606H (1845g) Heshvan-Nov 5616H (1856g) Elul-Sep 5619H (1859g) Av-Aug 5625H (1864g) Tishrei-Oct 5627H (1867g) Elul-Sep 5633H (1872g) Kislev-Dec 5635H (1875g) Elul-Sep 5641H (1881g) Shevat-Jan 5644H (1883g) Heshvan-Nov 5646H (1886g) Elul-Sep 5652H (1892g) Tevet-Jan 5655H (1894g) Tishrei-Oct 5660H (1900g) Shevat-Jan 5665H (1905g) Elul-Sep 5674H (1913g) Heshvan-Nov 5684H (1924g) Av-Aug 5693H (1932g) Tishrei-Oct 5701H (1940g) Kislev-Dec 5703H (1943g) Elul-Sep 5712H (1951g) Tishrei-Oct 5720H (1960g) Tevet-Jan 5722H (1962g) Av-Aug 5728H (1968g) Adar-Mar 5731H (1970g) Tishrei-Oct 5741H (1981g) Av-Aug 5749H (1989g) Elul-Sep 5758H (1997g) Heshvan-Nov 5760H (2000g) Elul-Sep 5768H (2008g) Elul-Sep 5771H (2011g) Av-Aug 5777H (2016g) Kislev-Dec 5779H (2019g) Elul-Sep 5793H (2033g) Shevat-Jan 5796H (2036g) Tevet-Jan 5798H (2038g) Elul-Sep 5804H (2044g) Tevet-Jan 5807H (2046g) Tishrei-Oct 5812H (2052g) Adar-Feb 5817H (2057g) Av-Aug 5826H (2065g) Tishrei-Oct 5831H (2071g) Shevat-Jan 5844H (2084g) Elul-Sep 5853H (2092g) Heshvan-Nov 5855H (2095g) Av-Aug 5864H (2103g) Heshvan-Nov 5866H (2106g) Elul-Sep 5872H (2112g) Tevet-Jan 5875H (2114g) Tishrei-Oct 5880H (2120g) Adar-Mar 5883H (2122g) Tishrei-Oct 5885H (2125g) Av-Aug 5891H (2130g) Kislev-Dec 5894H (2133g) Tishrei-Oct 5902H (2141g) Heshvan-Nov 5912H (2152g) Elul-Sep 5921H (2160g) Heshvan-Nov 5923H (2163g) Av-Aug 5929H (2168g) Kislev-Dec 5931H (2171g) Elul-Sep 5948H (2188g) Tevet-Jan 5950H (2190g) Elul-Sep 5956H (2196g) Shevat-Feb 5959H (2198g) Tishrei-Oct 5961H (2201g) Av-Aug 5969H (2209g) Elul-Sep 5978H (2217g) Heshvan-Nov 5988H (2228g) Elul-Sep 5991H (2231g) Av-Aug 5997H (2236g) Tishrei-Oct 5999H (2239g) Elul-Sep 6005H (2244g) Kislev-Dec 6008H (2247g) Heshvan-Nov 6016H (2255g) Heshvan-Nov 6018H (2258g) Elul-Sep 6024H (2264g) Tevet-Jan 6027H (2266g) Tishrei-Oct 6032H (2272g) Adar-Mar 6035H (2274g) Kislev-Dec 6037H (2277g) Av-Aug 6046H (2285g) Tishrei-Oct 6065H (2304g) Tishrei-Oct 6073H (2312g) Kislev-Dec 6075H (2315g) Elul-Sep 6084H (2323g) Tishrei-Oct 6092H (2332g) Tevet-Jan 6094H (2334g) Av-Aug 6100H (2340g) Adar-Mar 6103H (2342g) Tishrei-Oct 6105H (2345g) Av-Aug 6111H (2350g) Kislev-Dec 6113H (2353g) Av-Aug 6122H (2361g) Heshvan-Nov 6132H (2372g) Elul-Sep 6141H (2380g) Heshvan-Nov 6143H (2383g) Av-Aug 6149H (2388g) Kislev-Dec 6151H (2391g) Elul-Sep 6168H (2408g) Tevet-Jan 6170H (2410g) Elul-Sep 6176H (2416g) Tevet-Jan 6179H (2418g) Tishrei-Oct 6184H (2424g) Shevat-Feb 6189H (2429g) Av-Aug 6198H (2437g) Tishrei-Oct 6208H (2448g) Av-Aug 6216H (2456g) Elul-Sep 6219H (2459g) Av-Aug 6225H (2464g) Heshvan-Nov 6227H (2467g) Av-Aug 6236H (2475g) Tishrei-Oct 6238H (2478g) Av-Aug 6246H (2486g) Elul-Sep 6252H (2492g) Tevet-Jan 6254H (2494g) Elul-Sep 6263H (2502g) Kislev-Dec 6266H (2505g) Tishrei-Oct 6284H (2524g) Elul-Sep 6293H (2532g) Heshvan-Nov 6295H (2535g) Av-Aug 6303H (2543g) Elul-Sep 6320H (2560g) Tevet-Jan 6322H (2562g) Elul-Sep 6328H (2568g) Shevat-Feb 6331H (2570g) Tishrei-Oct 6341H (2581g) Av-Aug 6350H (2589g) Tishrei-Oct 6352H (2592g) Av-Aug 6358H (2597g) Kislev-Dec 6360H (2600g) Elul-Sep 6363H (2603g) Av-Aug 6369H (2608g) Kislev-Dec 6371H (2611g) Elul-Sep 6388H (2628g) Tevet-Jan 6390H (2630g) Elul-Sep 6396H (2636g) Tevet-Jan 6399H (2638g) Tishrei-Oct 6404H (2644g) Shevat-Feb 6409H (2649g) Av-Aug 6418H (2657g) Tishrei-Oct 6436H (2676g) Elul-Sep 6445H (2684g) Heshvan-Nov 6447H (2687g) Av-Aug 6456H (2695g) Tishrei-Oct 6458H (2698g) Av-Aug 6464H (2704g) Tevet-Jan 6467H (2706g) Tishrei-Oct 6472H (2712g) Adar-Mar 6475H (2714g) Tishrei-Oct 6477H (2717g) Av-Aug 6483H (2722g) Kislev-Dec 6486H (2725g) Tishrei-Oct 6494H (2733g) Heshvan-Nov 6504H (2744g) Elul-Sep 6513H (2752g) Heshvan-Nov 6515H (2755g) Av-Aug 6523H (2763g) Elul-Sep 6540H (2780g) Tevet-Jan 6542H (2782g) Elul-Sep 6548H (2788g) Shevat-Feb 6551H (2790g) Tishrei-Oct 6561H (2801g) Av-Aug 6570H (2809g) Tishrei-Oct 6580H (2820g) Av-Aug 6588H (2828g) Elul-Sep 6591H (2831g) Av-Aug 6597H (2836g) Heshvan-Nov 6600H (2839g) Tishrei-Oct 6608H (2847g) Tishrei-Oct 6610H (2850g) Av-Aug 6618H (2858g) Elul-Sep 6624H (2864g) Tevet-Jan 6627H (2866g) Heshvan-Nov 6632H (2872g) Shevat-Feb 6637H (2877g) Elul-Sep 6646H (2885g) Tishrei-Oct 6656H (2896g) Av-Aug 6665H (2904g) Heshvan-Nov 6667H (2907g) Av-Aug 6675H (2915g) Elul-Sep 6692H (2932g) Tevet-Jan 6694H (2934g) Elul-Sep 6700H (2940g) Shevat-Feb 6703H (2942g) Heshvan-Nov 6705H (2945g) Elul-Sep 6714H (2953g) Tishrei-Oct 6722H (2961g) Tishrei-Oct 6724H (2964g) Av-Aug 6730H (2969g) Kislev-Dec 6733H (2972g) Tishrei-Oct 6741H (2980g) Heshvan-Nov 6743H (2983g) Av-Aug 6752H (2991g) Tishrei-Oct 6760H (2999g) Kislev-Dec
Over the 1500 year sampling period, 128 Hebrew years have two months whose first days coincide with the first day of their corresponding Gregorian month. It should be obvious that there is no pattern of 19 year cycles in these coincidences.
5277H (1517g) Sivan-Jun Tammuz-Jul 5280H (1520g) Shevat-Jan v'Adar-Mar 5291H (1530g) Heshvan-Nov Kislev-Dec 5342H (1582g) Sivan-Jun Tammuz-Jul 5353H (1593g) Sivan-Jun Tammuz-Jul 5356H (1596g) Shevat-Jan v'Adar-Mar 5361H (1601g) Sivan-Jun Tammuz-Jul 5364H (1604g) Nisan-Apr Iyar-May 5367H (1606g) Heshvan-Nov Kislev-Dec 5372H (1612g) Sivan-Jun Tammuz-Jul 5391H (1631g) Sivan-Jun Tammuz-Jul 5413H (1652g) Kislev-Nov Tevet-Dec 5437H (1677g) Sivan-Jun Tammuz-Jul 5448H (1688g) Nisan-Apr Iyar-May 5456H (1696g) Sivan-Jun Tammuz-Jul 5462H (1702g) Tevet-Jan Adar-Mar 5467H (1707g) Sivan-Jun Tammuz-Jul 5505H (1745g) Sivan-Jun Tammuz-Jul 5508H (1748g) Shevat-Jan v'Adar-Mar 5516H (1756g) Nisan-Apr Iyar-May 5524H (1764g) Sivan-Jun Tammuz-Jul 5538H (1777g) Heshvan-Nov Kislev-Dec 5543H (1783g) Sivan-Jun Tammuz-Jul 5562H (1802g) Sivan-Jun Tammuz-Jul 5581H (1821g) Sivan-Jun Tammuz-Jul 5584H (1824g) Shevat-Jan v'Adar-Mar 5587H (1826g) Heshvan-Nov Kislev-Dec 5592H (1832g) Nisan-Apr Iyar-May 5611H (1851g) Sivan-Jun Tammuz-Jul 5614H (1854g) Tevet-Jan Adar-Mar 5657H (1897g) Sivan-Jun Tammuz-Jul 5663H (1902g) Heshvan-Nov Kislev-Dec 5671H (1911g) Tevet-Jan Adar-Mar 5682H (1922g) Tevet-Jan Adar-Mar 5687H (1927g) Sivan-Jun Tammuz-Jul 5690H (1930g) Tevet-Jan Adar-Mar 5725H (1965g) Sivan-Jun Tammuz-Jul 5733H (1973g) Sivan-Jun Tammuz-Jul 5736H (1976g) Nisan-Apr Iyar-May 5739H (1978g) Heshvan-Nov Kislev-Dec 5744H (1984g) Sivan-Jun Tammuz-Jul 5763H (2003g) Sivan-Jun Tammuz-Jul 5766H (2006g) Tevet-Jan Adar-Mar 5785H (2025g) Tevet-Jan Adar-Mar 5788H (2027g) Heshvan-Nov Kislev-Dec 5809H (2049g) Sivan-Jun Tammuz-Jul 5815H (2055g) Tevet-Jan Adar-Mar 5820H (2060g) Nisan-Apr Iyar-May 5828H (2068g) Sivan-Jun Tammuz-Jul 5834H (2073g) Heshvan-Nov Kislev-Dec 5847H (2087g) Sivan-Jun Tammuz-Jul 5858H (2098g) Sivan-Jun Tammuz-Jul 5877H (2117g) Sivan-Jun Tammuz-Jul 5888H (2128g) Nisan-Apr Iyar-May 5896H (2136g) Sivan-Jun Tammuz-Jul 5910H (2149g) Heshvan-Nov Kislev-Dec 5915H (2155g) Sivan-Jun Tammuz-Jul 5918H (2158g) Tevet-Jan Adar-Mar 5937H (2177g) Tevet-Jan Adar-Mar 5940H (2179g) Heshvan-Nov Kislev-Dec 5964H (2204g) Sivan-Jun Tammuz-Jul 5983H (2223g) Sivan-Jun Tammuz-Jul 5986H (2226g) Tevet-Jan Adar-Mar 6029H (2269g) Sivan-Jun Tammuz-Jul 6040H (2280g) Nisan-Apr Iyar-May 6048H (2288g) Sivan-Jun Tammuz-Jul 6054H (2293g) Heshvan-Nov Kislev-Dec 6097H (2337g) Sivan-Jun Tammuz-Jul 6108H (2348g) Nisan-Apr Iyar-May 6116H (2356g) Sivan-Jun Tammuz-Jul 6130H (2369g) Heshvan-Nov Kislev-Dec 6135H (2375g) Sivan-Jun Tammuz-Jul 6138H (2378g) Tevet-Jan Adar-Mar 6157H (2397g) Tevet-Jan Adar-Mar 6160H (2399g) Heshvan-Nov Kislev-Dec 6181H (2421g) Sivan-Jun Tammuz-Jul 6187H (2427g) Tevet-Jan Adar-Mar 6192H (2432g) Sivan-Jun Tammuz-Jul 6200H (2440g) Sivan-Jun Tammuz-Jul 6206H (2445g) Heshvan-Nov Kislev-Dec 6230H (2470g) Sivan-Jun Tammuz-Jul 6233H (2473g) Tevet-Jan Adar-Mar 6244H (2483g) Heshvan-Nov Kislev-Dec 6268H (2508g) Sivan-Jun Tammuz-Jul 6274H (2513g) Heshvan-Nov Kislev-Dec 6287H (2527g) Sivan-Jun Tammuz-Jul 6301H (2541g) Tevet-Jan Adar-Mar 6306H (2546g) Sivan-Jun Tammuz-Jul 6312H (2551g) Heshvan-Nov Kislev-Dec 6339H (2579g) Tevet-Jan Adar-Mar 6344H (2584g) Sivan-Jun Tammuz-Jul 6377H (2617g) Tevet-Jan Adar-Mar 6380H (2619g) Heshvan-Nov Kislev-Dec 6401H (2641g) Sivan-Jun Tammuz-Jul 6407H (2647g) Tevet-Jan Adar-Mar 6412H (2652g) Nisan-Apr Iyar-May 6420H (2660g) Sivan-Jun Tammuz-Jul 6426H (2665g) Heshvan-Nov Kislev-Dec 6439H (2679g) Sivan-Jun Tammuz-Jul 6450H (2690g) Sivan-Jun Tammuz-Jul 6453H (2693g) Tevet-Jan Adar-Mar 6469H (2709g) Sivan-Jun Tammuz-Jul 6480H (2720g) Nisan-Apr Iyar-May 6488H (2728g) Sivan-Jun Tammuz-Jul 6502H (2741g) Heshvan-Nov Kislev-Dec 6507H (2747g) Sivan-Jun Tammuz-Jul 6510H (2750g) Tevet-Jan Adar-Mar 6521H (2761g) Tevet-Jan Adar-Mar 6529H (2769g) Tevet-Jan Adar-Mar 6532H (2771g) Heshvan-Nov Kislev-Dec 6559H (2799g) Tevet-Jan Adar-Mar 6564H (2804g) Sivan-Jun Tammuz-Jul 6572H (2812g) Sivan-Jun Tammuz-Jul 6578H (2817g) Heshvan-Nov Kislev-Dec 6602H (2842g) Sivan-Jun Tammuz-Jul 6605H (2845g) Tevet-Jan Adar-Mar 6635H (2875g) Tevet-Jan Adar-Mar 6643H (2883g) Tevet-Jan Adar-Mar 6648H (2888g) Sivan-Jun Tammuz-Jul 6654H (2894g) Tevet-Jan Adar-Mar 6673H (2913g) Tevet-Jan Adar-Mar 6678H (2918g) Sivan-Jun Tammuz-Jul 6684H (2923g) Heshvan-Nov Kislev-Dec 6711H (2951g) Tevet-Jan Adar-Mar 6716H (2956g) Sivan-Jun Tammuz-Jul 6749H (2988g) Heshvan-Nov Kislev-Dec 6754H (2994g) Sivan-Jun Tammuz-Jul 6757H (2997g) Tevet-Jan Adar-Mar
Over the 1500 year sampling period, 39 Hebrew years have three months whose first days coincide with the first day of their corresponding Gregorian month. It should be obvious that there is no pattern of 19 year cycles in these coincidences, although most of the triple coincidence years are separated by exact multiples of 19 years.
Another observation which can be made is that all of the triple coincidences always occur with the Gregorian months February, April, and May. This is due entirely to February being 28 days long, and the first coinciding Hebrew month being 29 days long.
Although the sampling period shows the triple coincidences to occur about
once in every 38.5 years, no such coincidences can be found for the 6,565
Hebrew year period beginning in
10,335H (6,574g) and ending in 16,899H (13,138g).
5269H (1509g) Adar-Feb Nisan-Apr Iyar-May 5307H (1547g) Adar-Feb Nisan-Apr Iyar-May 5383H (1623g) Adar-Feb Nisan-Apr Iyar-May 5402H (1642g) Adar-Feb Nisan-Apr Iyar-May 5470H (1710g) Adar-Feb Nisan-Apr Iyar-May 5535H (1775g) Adar-Feb Nisan-Apr Iyar-May 5554H (1794g) Adar-Feb Nisan-Apr Iyar-May 5573H (1813g) Adar-Feb Nisan-Apr Iyar-May 5603H (1843g) Adar-Feb Nisan-Apr Iyar-May 5622H (1862g) Adar-Feb Nisan-Apr Iyar-May 5679H (1919g) Adar-Feb Nisan-Apr Iyar-May 5755H (1995g) Adar-Feb Nisan-Apr Iyar-May 5774H (2014g) Adar-Feb Nisan-Apr Iyar-May 5850H (2090g) Adar-Feb Nisan-Apr Iyar-May 5907H (2147g) Adar-Feb Nisan-Apr Iyar-May 5926H (2166g) Adar-Feb Nisan-Apr Iyar-May 5975H (2215g) Shevat-Feb Nisan-Apr Iyar-May 5994H (2234g) Shevat-Feb Nisan-Apr Iyar-May 6062H (2302g) Shevat-Feb Nisan-Apr Iyar-May 6127H (2367g) Shevat-Feb Nisan-Apr Iyar-May 6146H (2386g) Shevat-Feb Nisan-Apr Iyar-May 6222H (2462g) Shevat-Feb Nisan-Apr Iyar-May 6241H (2481g) Shevat-Feb Nisan-Apr Iyar-May 6260H (2500g) Shevat-Feb Nisan-Apr Iyar-May 6279H (2519g) Shevat-Feb Nisan-Apr Iyar-May 6290H (2530g) Shevat-Feb Nisan-Apr Iyar-May 6298H (2538g) Shevat-Feb Nisan-Apr Iyar-May 6309H (2549g) Shevat-Feb Nisan-Apr Iyar-May 6366H (2606g) Shevat-Feb Nisan-Apr Iyar-May 6442H (2682g) Shevat-Feb Nisan-Apr Iyar-May 6499H (2739g) Shevat-Feb Nisan-Apr Iyar-May 6518H (2758g) Shevat-Feb Nisan-Apr Iyar-May 6594H (2834g) Shevat-Feb Nisan-Apr Iyar-May 6613H (2853g) Shevat-Feb Nisan-Apr Iyar-May 6651H (2891g) Shevat-Feb Nisan-Apr Iyar-May 6662H (2902g) Shevat-Feb Nisan-Apr Iyar-May 6670H (2910g) Shevat-Feb Nisan-Apr Iyar-May 6681H (2921g) Shevat-Feb Nisan-Apr Iyar-May 6746H (2986g) Shevat-Feb Nisan-Apr Iyar-May
First Paged 15 Nov 1998 Next Revised 11 Oct 2000