Date calculator · 12 weeks from today
12 weeks from today is Monday 21 December 2026
12 weeks from today (Monday 28 September 2026) is Monday 21 December 2026, 84 days away. Counting today but not that date, you have 60 working days in England and Wales (no bank holidays to take off) and 57 US federal working days (after taking off 3 federal holidays), plus 24 weekend days.
Date
21 Dec 2026
Monday
Calendar days
84
12 weeks
UK working days
60
England and Wales
US working days
57
federal holidays off
Weekend days
24
12 Saturdays, 12 Sundays
UK bank holidays in the count: none.
US federal holidays in the count: Columbus Day (12 Oct 2026), Veterans Day (11 Nov 2026) and Thanksgiving Day (26 Nov 2026).
Updated daily; counted from Monday 28 September 2026.
The 12-week rule for agency workers
According to GOV.UK, after 12 weeks in the same job an agency worker is entitled to be paid the same as a permanent employee doing the same job. If your assignment started today, week 13 starts on Monday 21 December 2026.
If you meant 84 working days
84 working days from today is Wednesday 27 January 2027 in England and Wales and Monday 1 February 2027 in the US, counting from tomorrow and skipping weekends and public holidays. Use this when a notice period or a delivery promise is given in working days.
12 weeks before today
12 weeks before today was Monday 6 July 2026. Count back this way to check when a 12-week period that ends today began.
How the count works
The date is today plus 84 calendar days (12 × 7), so it falls on the same weekday as today, a Monday. Working days run from today to the day before 21 Dec 2026, Monday to Friday, less bank or federal holidays.
12 weeks from other start dates
Starting on a different day changes the end date and the working days, because weekends and holidays fall differently. Working days count the start date but not the end date.
| Start date | End date | UK working days | US working days |
|---|---|---|---|
| Monday 28 September 2026 | Monday 21 December 2026 | 60 | 57 |
| Tuesday 29 September 2026 | Tuesday 22 December 2026 | 60 | 57 |
| Wednesday 30 September 2026 | Wednesday 23 December 2026 | 60 | 57 |
| Thursday 1 October 2026 | Thursday 24 December 2026 | 60 | 57 |
| Friday 2 October 2026 | Friday 25 December 2026 | 60 | 57 |
| Saturday 3 October 2026 | Saturday 26 December 2026 | 59 | 56 |
| Sunday 4 October 2026 | Sunday 27 December 2026 | 59 | 56 |
Guides and definitions
- How much notice do I need to cancel a contract or subscription? (Guide)
- Cooling-off period (A cooling-off period is the 14 days UK law gives you to cancel most contracts made online, by phone or off-premises, without a reason.)
- Notice period (A notice period is the time between telling the other party you are ending a contract and the date it actually ends.)
Other weeks from today
- 9 weeks from today (30 Nov 2026)
- 10 weeks from today (7 Dec 2026)
- 11 weeks from today (14 Dec 2026)
- 16 weeks from today (18 Jan 2027)
- 20 weeks from today (15 Feb 2027)
- 26 weeks from today (29 Mar 2027)
Every day and week from today · Days until holidays and deadlines · Days left in the year · Count between any two dates
Common questions
What date is 12 weeks from today?
12 weeks from today, Monday 28 September 2026, is Monday 21 December 2026. That is 84 calendar days, or 12 weeks, counting tomorrow as day 1 and the date itself as day 84.
How many working days are there in the next 12 weeks?
From today up to Monday 21 December 2026 there are 60 working days in England and Wales and 57 US federal working days, counting today but not the end date. That is 84 days less 24 weekend days, less the public holidays that fall on weekdays.
What day of the week will it be in 12 weeks?
It will be a Monday. Today is a Monday and 84 days is 12 weeks, so the weekday does not change.
Are there any bank holidays in the next 12 weeks?
No England and Wales bank holiday falls between today and Monday 21 December 2026. The next one is Christmas Day on Friday 25 December 2026. In the US, Columbus Day, Veterans Day and Thanksgiving Day fall in the same period.
What date was 12 weeks ago?
12 weeks ago was Monday 6 July 2026. Counting back uses the same rule as counting forward: each calendar day counts, including weekends and bank holidays, unless a rule says working days.
Sources and assumptions
- Calendar days: the target date minus today. Working days: Monday to Friday from today up to the day before the target date, the way the Days Between Dates calculator counts them.
- UK working days take off England and Wales bank holidays from the GOV.UK feed, including substitute days. Scotland and Northern Ireland have different bank holidays.
- US working days take off federal holidays on the day they are observed under 5 U.S.C. 6103. States and employers can add their own holidays.
- GOV.UK: UK bank holidays (England and Wales)
- 5 U.S.C. 6103: US federal legal public holidays
- GOV.UK: Agency workers, pay
Dates are worked out for the UK time zone and refreshed in your browser for your own date. Your employer, court or contract may count days differently, so check the exact rule that applies to you.