| Name of Era | Start Year | Date in Julian Calendar | Julian Day Number | Rata Die | CE years | Kali-ahargana | K-a moons |
| Byzantine Era | 1 | 1 September 5509 BCE | -290495 | -2011920 | -5509 | -878961 | -29764.42 |
| Julian Day = 0 | 1 January 4713 BCE | 0 | -1721425 | -4714 | -588466 | -19927.34 | |
| Hebrew | 1 AM | 7 October 3761 BCE | 347998 | -1373427 | -3761 | -240468 | -8143.01 |
| Mayan (584283) | 11 August 3114 BCE | 584283 | -1137142 | -3114 | -4183 | -141.65 | |
| Mayan (584285) | 13 August 3114 BCE | 584285 | -1137140 | -3114 | -4181 | -141.58 | |
| Kali Yuga | 0 KY | 18 February 3102 BCE | 588466 | -1132959 | -3102 | 0 | 0.00 |
| Nabonassar (Egyptian) | 1 | 26 February 747 BCE | 1448638 | -272787 | -747 | 860172 | 29128.17 |
| Alexandrian | 1 | 1 October 312 BCE | 1607739 | -113686 | -312 | 1019273 | 34515.84 |
| Seleucid | 1 | 2 April 311 BCE (= 1 Nisan 3450) | 1607922 | -113503 | -311 | 1019456 | 34522.03 |
| Vikram (Hindu Lunar) | 0 VE | 24 February 58 BCE | 1700293 | -21132 | -58 | 1111827 | 37650.01 |
| Anno Domini | 1 AD | 1 January 1 | 1721424 | -1 | -1 | 1132958 | 38365.57 |
| Common Era | 1 CE | 1 January 1 | 1721424 | -1 | -1 | 1132958 | 38365.57 |
| AD (Pr Greg) | 1 AD | 3 January 1 | 1721426 | 1 | 0 | 1132960 | 38365.64 |
| CD (Pr Greg) | 1 AD | 3 January 1 | 1721426 | 1 | 0 | 1132960 | 38365.64 |
| Ethiopic | 1 EE | 29 August 8 | 1724221 | 2796 | 7 | 1135755 | 38460.29 |
| Saka (Hindu Solar) | 0 SE | 15 March 78 CE | 1749621 | 28196 | 77 | 1161155 | 39320.41 |
| Diocletian | 1 | 29 August 284 | 1825030 | 103605 | 283 | 1236564 | 41874.00 |
| Armenian | 1 | 11 July 552 | 1922868 | 201443 | 551 | 1334402 | 45187.11 |
| Persian | 1 AP | 22 March 622 | 1948321 | 226896 | 621 | 1359855 | 46049.03 |
| Yerm Cycle 1 | 16 May 622 | 1948379 | 226954 | 621 | 1359913 | 46050.99 | |
| Islamic | 1 AH | 16 July 622 | 1948440 | 227015 | 621 | 1359974 | 46053.06 |
| Jalali | 1 | 15 March 1079 CE | 2115236 | 393811 | 1078 | 1526770 | 51701.30 |
| Name of Era | Start Year | Date in Gregorian Calendar | Julian Day Number | Rata Die | CE Years | Kali-ahargana | K-a moons |
| French Revolution | 1 | 22 September 1792 | 2375840 | 654415 | 1791 | 1787374 | 60526.19 |
| Modified Julian Day = 0 | 17 November 1858 | 2400001 | 678576 | 1857 | 1811535 | 61344.36 | |
| Saka (Indian Civil) | 1879 SE | 22 March 1957 | 2435920 | 714495 | 1956 | 1847454 | 62560.69 |
| Unix | 1 January 1970 CE | 2440588 | 719163 | 1969 | 1852122 | 62718.76 | |
| Yerm Cycle 21 | 11 November 1996 CE | 2450399 | 728974 | 1995 | 1861933 | 63050.99 | |
| 1999 Eclipse | 11 August 1999 CE | 2451402 | 729977 | 1998 | 1862936 | 63084.96 | |
| Millennium 2000 | 1 January 2000 CE | 2451545 | 730120 | 1999 | 1863079 | 63089.80 | |
| Millennium 2000 Lunar | 7 January 2000 CE | 2451551 | 730126 | 1999 | 1863085 | 63090.00 | |
| CEP | 21 March 2675 CE | 2698163 | 976738 | 2674 | 2109697 | 71441.07 |