Subtract Days
What date was 30 days ago?
Days taken off a date, with the weekday, and the working-day answer beside it for anything counted backwards from a deadline.
Questions people ask
The things that come up about subtract dayss, answered plainly.
What date was 30 days ago?
It depends which month you are in — the tool works it out. The working-day answer is usually about six weeks back, which is the figure that matters for notice periods and filing deadlines.
How do I count back from a deadline?
Enter the deadline as the date and the lead time as the number of days. Switch the working-days toggle on if the deadline is stated in business days, which most legal ones are.
Related tools
Move a date forwards or backwards by a span, with the calendar's rules applied.
Add Days to DateAdd any number of days to a date and get the answer with its weekday, plus the same date counted in working days for anything with a deadline attached.
Subtract WeeksWhole weeks taken off a date — the weekday is guaranteed to be the same, which makes this the safest way to step backwards.
Past Date CalculatorCount backwards from today by any span — days, weeks, months or years — and get the date with its weekday and week number.
Business Days CalculatorWeekends out, public holidays out, and the ones it removed listed by name — so you can see whether the calendar you picked is the one your contract means.