A date in every calendar
February 12, 1809
Sunday
Charles Darwin and Abraham Lincoln were both born on this day — the naturalist who reframed biology and the president who ended American slavery.
February 12, 1809 across 14 calendars
| Gregorian Solar | February 12, 1809 |
| Hebrew Lunisolar | 26 Shevat 5569 |
| Islamic (Umm al-Qura) Lunar | Dhuʻl-Hijjah 26, 1223 AH |
| Islamic (tabular civil) Lunar | Dhuʻl-Hijjah 26, 1223 AH |
| Persian (Solar Hijri) Solar | Bahman 23, 1187 AP |
| Indian National Solar | Magha 23, 1730 Śaka |
| Chinese Lunisolar | Twelfth Month 28, 1808(wu-chen) |
| Korean (Dangi) Lunisolar | Twelfth Month 28, 1808(wu-chen) |
| Japanese (regnal) Solar | February 12, 6 Bunka (1804–1818) |
| Buddhist (Thai) Solar | February 12, 2352 BE |
| Republic of China (Minguo) Solar | February 12, 103 B.R.O.C. |
| Coptic Solar | Amshir 6, 1525 AM |
| Ethiopian Solar | Yekatit 6, 1801 AM |
| Ethiopian (Amete Alem) Solar | Yekatit 6, 7301 AA |
Conversions use the proleptic Gregorian calendar as the pivot. All systems render the same physical day — a Sunday.