Month numbers follow the standard Gregorian calendar order, starting with January as 1 and ending with December as 12.
December has 31 days and falls in UK meteorological winter.
Months of the year
What Month Is December?
December is month 12 in the calendar year.
Direct answer
December is month 12 of the year.
Generated using Europe/London time. Dynamic date and time answers may differ in other time zones.
How this is calculated
Quick reference
- Month number
- 12
- Typical UK season
- winter
Frequently asked questions
What number month is December?
December is month 12.
How many days are in December?
December has 31 days.
Do all countries use the same month order?
Most countries use the Gregorian calendar for civil dates, but date formatting and local calendars can vary.
Can I add months to a date?
Yes. Use the Date Add / Subtract Calculator for month-based date arithmetic.