How it's counted
Days since are counted from the date to today, not including the date itself.
In a spreadsheet
In Excel or Google Sheets, type =TODAY()-28 and format the cell as a date. To count from a different start date, use the date calculator.
28 days before other dates
| Starting from | 28 days earlier |
|---|---|
| Tue, Oct 13 (today) | Tuesday, September 15, 2026 |
| Mon, Oct 12 | Monday, September 14, 2026 |
| Sun, Oct 11 | Sunday, September 13, 2026 |
| Sat, Oct 10 | Saturday, September 12, 2026 |
| Fri, Oct 9 | Friday, September 11, 2026 |
| Thu, Oct 8 | Thursday, September 10, 2026 |
| Wed, Oct 7 | Wednesday, September 9, 2026 |
Days ago
Frequently asked questions
What day is 28 days ago?
28 days ago was Tuesday, September 15, 2026.
What day of the week is 28 days ago?
It was a Tuesday.
What was the date 28 days ago?
Tuesday, September 15, 2026. The date moves forward by one day every day, so this page always counts from today.
How many weeks is 28 days?
28 calendar days is 4.0 weeks.
What date is 28 days from today?
Tuesday, November 10, 2026.
Does "28 days ago" include today?
No. Today is day 0, so the count starts from tomorrow (or yesterday, for dates in the past).
How do I work out 28 days ago in Excel or Google Sheets?
Type =TODAY()-28 and format the cell as a date.
How many business days are in 28 days?
From today it is 20 weekdays (Monday to Friday), before public holidays.