| Gregorian: | Saturday, 23 January 2021 |
| Mayan: | Long count = 13.0.8.3.15; tzolkin = 8 Men; haab = 18 Muan |
| French: | 4 Pluviôse an 229 de la Révolution |
| Islamic: | 9 Jumada II 1442 |
| Hebrew: | 10 Shevat 5781 |
| Julian: | 10 January 2021 |
| ISO: | Day 6 of week 3 of 2021 |
| Persian: | 4 Bahman 1399 |
| Ethiopic: | 15 Ter 2013 |
| Coptic: | 15 Tubah 1737 |
| Chinese: | Cycle 78, year 37 (Geng-Zi), month 12 (Ji-Chou), day 11 (Xin-Wei) |
| Julian day: | 2459238 |
| Day of year: | Day 23 of 2021; 342 days remaining in the year |
| Discordian: | Pungenday, Chaos 23, Year of Our Lady of Discord 3187 |
