| Gregorian: | Thursday, 23 May 2013 |
| Mayan: | Long count = 13.0.0.7.13; tzolkin = 1 Ben; haab = 11 Zip |
| French: | 4 Prairial an 221 de la Révolution |
| Islamic: | 13 Rajab 1434 |
| Hebrew: | 14 Sivan 5773 |
| Julian: | 10 May 2013 |
| ISO: | Day 4 of week 21 of 2013 |
| Persian: | 2 Xordad 1392 |
| Ethiopic: | 15 Genbot 2005 |
| Coptic: | 15 Bashans 1729 |
| Chinese: | Cycle 78, year 30 (Gui-Si), month 4 (Ding-Si), day 14 (Ji-Chou) |
| Julian day: | 2456436 |
| Day of year: | Day 143 of 2013; 222 days remaining in the year |
| Discordian: | Pungenday, Discord 70, Year of Our Lady of Discord 3179 |
