Recognised as Month
December 2011
- December 2011
- 31 days
- 22 working days
- Q4
December 2011 has 31 days, beginning on a Thursday and ending on a Saturday. It contains 22 working days and 9 weekend days, spanning ISO weeks 48 to 52, and falls in Q4 of 2011.
The month
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December 2011, weeks starting Monday. Weekends highlighted.
Month number12 of 12
Days31
First dayThursday, 1 December 2011
Last daySaturday, 31 December 2011
QuarterQ4
Days before it in the year334
Day-of-year range335 to 365
Share of the year8.493%≈
Weeks and working days
Working days22Monday to Friday, ignoring public holidays, which vary by country and change
Weekend days9
ISO weeks spannedWeeks 48 to 52
Full weeks4and 3 days over
Sundays4
Mondays4
Tuesdays4
Wednesdays4
Thursdays5
Fridays5
Saturdays5
Position in the year
Reference numbers
Unix timestamp of the 1st1,322,697,600midnight UTC
Unix timestamp of the last day1,325,289,600midnight UTC
Seconds in the month2,678,400ignoring leap seconds
Julian Day Number of the 1st2,455,897
Hebrew5 Kislev 5772the 1st of this month in the Hebrew calendar
Islamic (tabular)5 Muharram 1433 AHthe tabular reckoning, not the observational calendar in religious use
Relative to today
These values depend on today’s date and change daily.
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Adjacent months
December in other years
Days of the month
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