Recognised as Date
21 January 2006
- Saturday
- Q1
- Common year
- Week 3
- Aquarius
21 January 2006 falls on a Saturday. It is day 21 of 365 in 2006, falling in week 3 and quarter 1. Its Unix timestamp is 1,137,801,600.
Calendar position
Day of the weekSaturday
Day of the month21st
Day of the year21 of 365
Days remaining in the year344
Days elapsed in the year20
ISO week numberWeek 3ISO 8601, weeks start on Monday
Week of the month3rd
Occurrence in the month3rd Saturday
QuarterQ1 2006
Year2006
Days in the month31
Leap yearNo, 365 days
This date in other formats
ISO 86012006-01-21
British (D/M/Y)21/01/2006
American (M/D/Y)01/21/2006
Long formSaturday 21st January 2006
RFC 2822Sat, 21 Jan 2006 00:00:00 GMT
Compact20060121
In wordsthe 21st of January, two thousand and six
This date in other calendars
Hebrew21 Tevet 5766the Hebrew calendar has been fully algorithmic since the ninth century, so this is exact
Islamic (tabular)21 Dhu al-Hijjah 1426 AHthe tabular reckoning; the calendar in religious use begins each month on an actual crescent sighting, so expect a day either way
Persian (arithmetic)1 Bahman 1384the arithmetic (Birashk) calendar; the official Solar Hijri calendar takes its new year from the astronomical equinox at Tehran
Rata Die732,332days since 1 January 1 CE in the proleptic Gregorian calendar, the pivot every conversion here runs through
Unix time & day counts
Unix timestamp1,137,801,600seconds since 1 January 1970, midnight UTC
Unix timestamp (ms)1,137,801,600,000
Relationship to the epoch13,169 days after the Unix epoch
Julian Day Number2,453,757midnight UTC
Days since 1 January 190038,736
Days since 1 January 20002,212
Moon phase
PhaseWaning gibbousthe same phase everywhere on Earth at the same instant
Illuminated at 12:00 UTC61%≈to about 1%, by Meeus
Waxing or waningWaning
Moon age at 12:00 UTC21.4 dayssince the previous new moon
Previous new moon31 December 2005, 03:12 UTC
Next new moon29 January 2006, 14:15 UTC
Previous full moon14 January 2006, 09:48 UTC
Next full moon13 February 2006, 04:44 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.
Today19 September 2026
Days ago7,546 days
In other terms20 years and 241 days
Weeks1078.0 weeks ago
Anniversary this year241 days ago
Years elapsed20 complete years
Seasons & signs
Zodiac signAquariusAir sign
Chinese zodiac yearDogthe animal changes at Chinese New Year, not 1 January
Season (Northern Hemisphere)Wintermeteorological seasons, by whole months
Season (Southern Hemisphere)Summer
Easter Sunday that year16 April 2006
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