| Gregorian | wednesday 31st december 2025, 364th day (rest 1), 53rd week |
| Badi or Baha'i | 'idal 2nd of or jalal of sharaf 182, Kull-i-Shay bahaj |
| Berber | lexmis 20th dudjember 2975, periods : llyali - issemadeen - iweggiben |
| Chinese | day 12, month 11 (bis), year Yi-Si (Snake) - cycle 78 - JiéQi : XiaoHan |
| Coptic | peftoou 22nd of khoiak 1742 |
| Discordian | prickle-prickle 73rd of season aftermath 3191 |
| Ethiopic | rabu'e 22nd of takhsas 2018 |
| Gallic (Celtic) | 24th of anagantios 3896, 2nd litis 4th setlon 7th cycle |
| Indian | Saka Era 1947, pausa 10th |
| Jalaali (Persian) | chechar 11th of day 1404 |
| Jewish | yom revi'i 13th of tevet 5786 |
| Liberalia | sophiesday 5th of mellephaneus 125 LLT , 6th of abrasax 121 SLT |
| Mayan | Long count : 12.20.13.3.18 - Tzolkin : 4 etznab - Haab : 16 kankin |
| Galactic Milieu | La Prime 1-369-095 |
| Muat patrusi | nuit 17th of pee'gba 12036 Pa Rak |
| Muslim | youm al arbia 11th of radjab 1447 |
| Pataphysic | monday 3rd of scatterbraining 153 E.P., St Alaodine, virtuose |
| Pawukon | menga beteng laba paing aryang buda brahma ogan manusa - bulan : krulut |
| Positivist | Fête générale des Morts year 236 |
| French | decadi 11th of nivôse 234, prénom républicain : Salpêtre |
| Roman | ante diem XV kalends of january 2026 |
| Startrek | [-25]1618.86 |
| Thai | pareuhadsabordee 31st of tanwarkom 2568, reudoo narw |
| Thelemic | year Vxi, sun 16° Capricorn, moon 22° Taurus |
| Zoroastrian | mihr (16th) of dac 1394 |