Days to seconds converter
Convertersconversion pair
Convert days to seconds instantly: 1 day is 86,400 seconds. Time, timers and logs, with the exact math and one-click copying.
a day is 86,400 seconds — the countdown, fully itemized.
work surface
Math, not advice — results are indicative. Read the disclaimer.
pro tips
Multiply by 86,400: 2 days is 172,800 seconds.
A week is 604,800 seconds; a month (30 days) is 2,592,000.
When setting expiries, double-check whether you meant days or seconds.
what it does
One day is 86,400 seconds. Multiply days by 86,400 and the seconds appear, which is how a deadline or a lease becomes a number a timer can count down.
It shows up when a plan measured in days has to be set as a timeout in seconds, when a token or lease expires in seconds but is quoted in days, when a duration is described in days and stored in seconds, and in any system where the human unit and the machine unit differ by four orders of magnitude.
The shortcut: 1 day is 86,400 seconds, 2 days is 172,800, a week is 604,800, and 30 days is 2,592,000. The number is big and round, which makes it easy to double by mistake when setting a timer.
Type any day value and the widget answers in seconds instantly, with the math on screen. Click to copy, and swap when a seconds-based figure has to be rolled up into days.
quick answers
How many seconds are in a day?
86,400 exactly.
Is a week 604,800 seconds?
Yes — 7 times 86,400, if anyone's counting.
Why convert days to seconds?
Because plans and policies use days while timers, tokens and logs run on seconds.