| Calendar | Date |
| Ancient Roman | A.D. XV KAL. IVN. MMDCCLX |
| Bahai | 'Azamat 1 (Bahá) 165 (Ahad) Váhid: 9 (Bahá) Kull-i-Shay: 1 |
| Chinese | 四月 (丁巳) 十三 (丁巳) 4706 (戊子) Rat (鼠) |
| Coptic | Pachons 9, 1724 |
| Ethiopic | Genbot 9, 2000 |
| Fasli | Ardibehest 28, 1379 (Zamyad) |
| French Republic | Floréal 29, CCXVI |
| Gregorian | May 17, 2008 |
| Hebrew | Iyar 12, 5768 |
| Indian Civil | Vaisakha 27, 1930 |
| Islamic | Jumada l-Ula 11, 1429 |
| Japanese Era | 5月 17日 2008 |
| Julian | May 4, 2008 |
| Mayan | Sip 4 (2 Imix) 12.19.15.6.1 |
| Persian | Ordibehesht 28, 1387 |
| Qadimi | Bahman 2, 1377 (Bahman) |
| Shenshai | Dae 2, 1377 (Bahman) |
| Viking | Eggtið 5, 1054 |
| ISO | Year: 2008 Week: 20 Day: 6 |
| Julian Day Number | 2454603.5 |