Dates & time
Time Zone Converter
Convert a date and time between two time zones.
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Resources for “time”
Discover 14 resources related to time.
Tools
Dates & time
Work Hours Calculator
Calculate worked hours after subtracting breaks.
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Date Format Converter
Convert dates between ISO, day-first and month-first formats.
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Date Range Generator
Generate a list of dates between two endpoints.
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Meeting Time Planner
Find overlapping meeting times across two time zones.
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Business Hours Calculator
Calculate business hours between two date-times.
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Day of Week Calculator
Find the weekday for any date.
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Relative Time Calculator
Express a difference as “3 days ago” or “in 2 hours”.
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Day of Year Calculator
Find a date’s ordinal day within the year.
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Recurring Dates Generator
Generate a daily, weekly, monthly or yearly series.
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Beta
Time Duration Calculator
Calculate the duration between a start time and an end time.
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Beta
Duration Converter
Convert seconds, minutes, hours, days and weeks.
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GuideBest practicesBeginner
Date and time calculations: a practical guide
Date differences, durations, business days, ISO weeks, recurrences and formats: choose the right date and time calculation.
7 September 20262 minRead
GuideConcepts and technologiesBeginner
Durations and time: calculate, convert and handle midnight crossings
Understand the difference between a clock time and a duration, calculate intervals between times, and convert seconds, minutes, hours, days and weeks.
28 August 20263 minRead