| Gregorian: | Tuesday, 21 May 2013 |
| Mayan: | Long count = 13.0.0.7.11; tzolkin = 12 Chuen; haab = 9 Zip |
| French: | 2 Prairial an 221 de la Révolution |
| Islamic: | 11 Rajab 1434 |
| Hebrew: | 12 Sivan 5773 |
| Julian: | 8 May 2013 |
| ISO: | Day 2 of week 21 of 2013 |
| Persian: | 31 Ordibehest 1392 |
| Ethiopic: | 13 Genbot 2005 |
| Coptic: | 13 Bashans 1729 |
| Chinese: | Cycle 78, year 30 (Gui-Si), month 4 (Ding-Si), day 12 (Ding-Hai) |
| Julian day: | 2456434 |
| Day of year: | Day 141 of 2013; 224 days remaining in the year |
| Discordian: | Sweetmorn, Discord 68, Year of Our Lady of Discord 3179 |
