DATE / TIME / A LITTLE MORE CLARITY
Date & Time Tools
Count the days, plan ahead and find the right time. Handy calculators for dates, ages, working days and people around the world.
01Between two dates
Exact duration accounts for daylight-saving clock changes. Time-zone dates: 1900–2100.
Date-only results count calendar days, so daylight-saving changes do not add or remove days. Calendar spans use complete months, clamped to month end.
02Move a date
Years and months are applied together, then weeks and days. If the target month is shorter, the date moves to its final day: 31 January + 1 month becomes 28 February (29 in a leap year).
03Age on any date
Choose today, a date in the past or a future date.
This is a calculation preference, not a determination of legal age.
04Something to look forward to
The clock moves back on this date. Choose which occurrence you mean.
Live countdowns update while this page is open. Dates in the past show elapsed time.
05Make every working day count
Use a minus number to go backwards. The starting date is not counted; zero keeps the same date.
Non-working days of the week
One date per line in YYYY-MM-DD format. Public holidays are excluded only when you add them here. Duplicate dates count once.
06Find a time that works
The clock moves back on this date. Choose the earlier or later occurrence.
Time-zone names and daylight-saving rules come from your browser. Meeting dates: 1900–2100. Green indicates a start between 09:00 and 17:00 on weekdays; amber is outside those hours.
07A timestamp, translated
Seconds since 1 January 1970, 00:00 UTC. Negative timestamps are supported.
ISO input must include Z (UTC) or an explicit offset such as +01:00. Unix timestamps describe an instant and are the same in every time zone.
Your data, your device
Calculations run in your browser. Nothing you enter is uploaded. Only your light/dark preference is saved automatically. Use Save calculation to keep a file on your device.
Date & Time Toolsreda-apps.com | Created on your device · v1.0.2
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