Recognised as Date
13 December 2003
- Saturday
- Q4
- Common year
- Week 50
- Sagittarius
13 December 2003 falls on a Saturday. It is day 347 of 365 in 2003, falling in week 50 and quarter 4. Its Unix timestamp is 1,071,273,600.
Calendar position
Day of the weekSaturday
Day of the month13th
Day of the year347 of 365
Days remaining in the year18
Days elapsed in the year346
ISO week numberWeek 50ISO 8601, weeks start on Monday
Week of the month2nd
Occurrence in the month2nd Saturday
QuarterQ4 2003
Year2003
Days in the month31
Leap yearNo, 365 days
This date in other formats
ISO 86012003-12-13
British (D/M/Y)13/12/2003
American (M/D/Y)12/13/2003
Long formSaturday 13th December 2003
RFC 2822Sat, 13 Dec 2003 00:00:00 GMT
Compact20031213
In wordsthe 13th of December, two thousand and three
This date in other calendars
Hebrew18 Kislev 5764the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)18 Shawwal 1424 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)22 Azar 1382the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die731,562days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp1,071,273,600seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)1,071,273,600,000
Relationship to the epoch12,399 days after the Unix epoch
Julian Day Number2,452,987midnight UTC
Days since 1 January 190037,966
Days since 1 January 20001,442
Moon phase
PhaseWaning gibbousthe same phase everywhere on Earth at the same instant
Illuminated at 12:00 UTC81%≈to about 1%, by Meeus
Waxing or waningWaning
Moon age at 12:00 UTC19.5 dayssince the previous new moon
Previous new moon23 November 2003, 22:59 UTC
Next new moon23 December 2003, 09:43 UTC
Previous full moon8 December 2003, 20:37 UTC
Next full moon7 January 2004, 15:40 UTC
Lit side, Northern HemisphereLeft
Lit side, Southern HemisphereRightthe same Moon seen from the other side of the equator; near the equator the lit side points up or down rather than to one side
Relative to today
These values depend on today’s date and change daily.
Today17 September 2026
Days ago8,314 days
In other terms22 years, 278 days and 12 hours
Weeks1187.7 weeks ago
Anniversary this yearin 87 days
Years elapsed22 complete years
Seasons & signs
Zodiac signSagittariusFire sign
Chinese zodiac yearGoatthe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Wintermeteorological seasons, by whole months
Season (Southern Hemisphere)Summer
Easter Sunday that year20 April 2003
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