September 2031 calendar

September 2031 has 30 days. It begins on Monday and ends on Tuesday. The first day falls in ISO week 36 of 2031. Today is highlighted when you view the current month. Open the full 2031 calendar, print this month, or count leave with the working days calculator. Bank holidays follow GOV.UK.

Last updated 12 September 2026

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September 2031

September 2031
WeekW	MonM	TueT	WedW	ThuT	FriF	SatS	SunS
36	1 Monday 1 September 2031	2 Tuesday 2 September 2031	3 Wednesday 3 September 2031	4 Thursday 4 September 2031	5 Friday 5 September 2031	6 Saturday 6 September 2031, weekend	7 Sunday 7 September 2031, weekend
37	8 Monday 8 September 2031	9 Tuesday 9 September 2031	10 Wednesday 10 September 2031	11 Thursday 11 September 2031	12 Friday 12 September 2031	13 Saturday 13 September 2031, weekend	14 Sunday 14 September 2031, weekend
38	15 Monday 15 September 2031	16 Tuesday 16 September 2031	17 Wednesday 17 September 2031	18 Thursday 18 September 2031	19 Friday 19 September 2031	20 Saturday 20 September 2031, weekend	21 Sunday 21 September 2031, weekend
39	22 Monday 22 September 2031	23 Tuesday 23 September 2031	24 Wednesday 24 September 2031	25 Thursday 25 September 2031	26 Friday 26 September 2031	27 Saturday 27 September 2031, weekend	28 Sunday 28 September 2031, weekend
40	29 Monday 29 September 2031	30 Tuesday 30 September 2031	Not in this month	Not in this month	Not in this month	Not in this month	Not in this month