0.7
weeks
4
UK working days
120
hours
38
ISO week number
18th September 2026
There are 5 days until 18th September, which falls on Friday, 18 September 2026. That is 4 working days once weekends and bank holidays are taken out.
It is day 261 of 365 and sits in ISO week 38.
Counted from today, Sunday 13 September 2026, in UK time. Today is not included in the total.
| Week | Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|---|
| 36 | 31 | 1 | 2 | 3 | 4 | 5 | 6 |
| 37 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 38 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 39 | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 40 | 28 | 29 | 30 | 1 | 2 | 3 | 4 |
Week numbers follow ISO 8601. Weeks begin on Monday.
Common questions
How many days until September 18?
There are 5 days until 18th September. Counting starts tomorrow and today is not included, so the next 18th September falls on Friday, 18 September 2026.
How many weeks until 18th September?
Less than a week — 5 days.
How many working days until 18th September?
4 working days in England & Wales, once 0 weekend days are taken out. No bank holidays fall in that period.
What day of the week is 18th September?
18th September falls on a Friday this time round — Friday, 18 September 2026.