| Gregorian | monday 18th may 2026, 137th day (rest 228), 20th week |
| Badi or Baha'i | kamal 3rd of or jamal of 'azamat 183, Kull-i-Shay javab |
| Berber | tslata 7th mayyu 2976, period : izegzawen |
| Chinese | day 2, month 4, year Bing-Wu (Horse) - cycle 78 - ZhongQi : XiaoMan |
| Coptic | pesnau 10th of pakhon 1742 |
| Discordian | boomtime 65th of season discord 3192 |
| Ethiopic | sanyo 10th of genbot 2018 |
| Gallic (Celtic) | 14th of equos 3896, 2nd litis 4th setlon 7th cycle |
| Indian | Saka Era 1948, vaisakha 28th |
| Jalaali (Persian) | dosh 29th of ordibehesht 1405 |
| Jewish | yom sheni 4th of sivan 5786 |
| Liberalia | sophiesday 1st of eleleth 125 LLT , 21st of kamaliel 122 SLT |
| Mayan | Long count : 12.20.13.10.16 - Tzolkin : 12 cib - Haab : 9 zip |
| Galactic Milieu | La Prime 1-369-233 |
| Muat patrusi | tafnutshu 8th of gama'aeb 12037 Pa Rak |
| Muslim | youm el itnine 1st of dou al hiddjia 1447 |
| Pataphysic | saturday 1st of merdre 153 E.P., St Foin, coryphée |
| Pawukon | menga beteng menala keliwon aryang coma yama ogan suka - bulan : wariga |
| Positivist | wednesday 26th of Caesar 237, Papinien (Ulpien) |
| French | octidi 29th of floréal 234, prénom républicain : Buglose |
| Roman | ante diem III nones of may 2026 |
| Startrek | [-25]2306.40 |
| Thai | angkam 18th of prergsaparkom 2569, reudoo rorn |
| Thelemic | year Vxii, sun 2° Gemini, moon 14° Gemini |
| Zoroastrian | mahraspand (29th) of ardwahisht 1395 |