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Date tools.
Timezone-aware date calculations
Last updated Apr 28, 2026. The calculator catalog and featured countdown links are refreshed during the normal site update cycle so the entry points stay relevant.
CALCULATORS
Count days, weeks, and months between two dates
Count days remaining until a future date
Count days elapsed since a past date
Find the date N days before or after a given date
Calculate exact age in years, months, and days
Find what day of the week any date falls on
Count working days between two dates (excludes weekends)
Find the ISO week number for any date
POPULAR COUNTDOWNS
FAQ
Date math often turns into timezone, countdown, or meeting-planning work once the first answer is clear.
Countdown hub
Browse event pages when the date question is really about a public release or live event.
Timezone converter
Use timezone conversion once a date calculation becomes a cross-city scheduling problem.
Meeting planner
Move into overlap planning after you know the date and need the right hour.
Browse countdown pages
Use the human-readable browse layer when you want stronger event-led date pages quickly.
