Today is:

New style (Gregorian): 1 October 2000
Old style (Julian): 18 September 2000 C.E.
Fixed:
730394 R.D.
Astronomical (at noon):
2451819 j.d.
ISO:
Sunday, Week 39, Year 2000
Coptic:
21 Tut 1717 A.M.
Ethiopic:
21 Maskaram 1993 E.E.
Islamic (until sunset):
2 Rajab 1421 A.H.
Persian:
10 Merh 1379 A.P.
Baha'i (until sunset):
N'ur Mash'iyyat, B'ab of V'ahid 9, Kull-i-Shay 1 B.E.
Hebrew (until sunset):
2 Tishri 5761 A.M.
Chinese:
cycle 78, year Geng-chen, month 9, day 4
Hindu Lunar (from sunrise):
4 Asvina 2057 V.E.
Hindu Solar (from sunrise):
15 Kanya 1922 S.E.
French:
Decade I, Decadi de Vendemiaire de l'Annee 209 de la Revolution
Mayan (long count):
12.19.7.10.16
Discordian: Prickle-Prickle, Bureaucracy 55, Year of Our Lady of Discord 3166