30 days ago

What date is 30 days ago? Here is the exact date, recalculated for today.

30 days ago is
calculating…
Today is today. This page subtracts 30 days.

Count from any date

Resulting date
-
30 days equalsValue
Weeksabout 4.3
Monthsabout 1.0
Hours720
Minutes43,200

This page shows you the exact calendar date 30 days ago, recalculated automatically for today so the answer is never stale. You can also count back 30 days from any start date you pick. Thirty days is a heavyweight lookup because so much of life runs on a roughly-monthly rhythm: billing cycles, return windows, and notice periods all tend to land near the 30-day mark, even though calendar months vary in length.

How to calculate 30 days ago

To find the date 30 days ago, start with today's date and subtract 30 days. The calculator at the top does this automatically using your device's current date, so the answer is always current. Use the "count from any date" box above to start from a different day — useful for backdating or projecting from a specific event rather than today.

Common uses

  • Checking whether a purchase still falls inside a store's standard 30-day return-and-refund window before you ask.
  • Pinpointing the start of a billing cycle to reconcile a charge that posted around a month back.
  • Counting back to confirm a 30-day notice period began on the right day before vacating a rental.

That works out to about 4.3 weeks or roughly 1.0 months. For counting between two specific dates instead, use the date calculator; to watch a future date approach live, see the countdown calculator.

Frequently Asked Questions

It depends on today's date, so the calculator computes it live every time you open the page. You can also count back 30 days from any date you choose.
Not exactly. Thirty days is about 4.3 weeks and roughly one month, but calendar months run 28 to 31 days, so a true month-ago date can differ by a day or two.