Why people look up 30 days ago
Thirty days ago is the start of many "last 30 days" windows: return policies, credit card statements, bank fraud claims and app analytics.
It is also the look-back period for many employment and benefit forms that ask about recent income or work.
30 days before the 1st of each month
| Date | 30 days earlier |
|---|---|
| December 1, 2026 | Sunday, November 1, 2026 |
| January 1, 2027 | Wednesday, December 2, 2026 |
| February 1, 2027 | Saturday, January 2, 2027 |
| March 1, 2027 | Saturday, January 30, 2027 |
| April 1, 2027 | Tuesday, March 2, 2027 |
| May 1, 2027 | Thursday, April 1, 2027 |
How 30 days ago is counted
The calculator takes today's date on your device and subtracts 30 calendar days, so it is right in your own time zone and accounts for months of different lengths and leap years. 30 days is 4 weeks and 2 days, or about 1.0 months. Calendar days include weekends and public holidays. If a rule talks about business days instead, use the business days calculator and count backwards.
Legal and financial deadlines often count from a specific event, such as the date a statement was sent or a notice was received, rather than from today. Enter that date as the start date above and choose Subtract to count back, or Add to find a deadline.
Frequently asked questions
What was the date 30 days ago?
30 days ago is shown at the top of this page, worked out live from your device's date. On the day this page was last updated (Wednesday, November 11, 2026), 30 days ago was Monday, October 12, 2026.
How many weeks is 30 days ago?
30 days is 4 weeks and 2 days, so 30 days ago was on a different weekday from today unless the number divides by 7.
Does "30 days ago" count today?
No. Yesterday is 1 day ago, and day 30 back is the date shown. Between that date and today there are 22 weekdays.