546 calculatrices

Date & Heure

664 calculatrices gratuites de date & heure — dont Age Calculator et Date Difference Calculator. Résultats instantanés dans votre navigateur, formule incluse.

Rechercher dans les calculateurs Date & Heure

Epoch Time Converter

Convert between Unix timestamp and date.

Date & Heure

Decimal Time Converter

Convert between decimal and standard time.

Date & Heure

World Clock (Two-City Time Comparison)

Both city clocks from one UTC reading: at 14:00 UTC it is 17:00 in Riyadh (+3) and 09:00 in New York (-5) — an 8-hour gap. Supports half-hour offsets like Delhi +5.5.

Date & Heure

Project Timeline Calculator

Calculate your project timeline.

Date & Heure

Duration Converter

Convert duration between different units.

Date & Heure

Date Format Converter

One date, every notation: Oct 16, 2026 also writes as 2026-10-16 (ISO 8601), 16/10/2026 (day-first) and Fri, 16 Oct 2026 (RFC 2822). Decodes US vs EU orderings.

Date & Heure

Coptic Calendar Information - Learn Coptic Calendar Months

Learn the 13 Coptic months and how they map to Gregorian dates. Complete guide to the Coptic Orthodox calendar system.

Date & Heure

Coptic to Gregorian Date Converter - Free Calendar Tool

Convert Coptic calendar dates to Gregorian calendar dates. Free online tool for date conversion between Coptic and Gregorian systems.

Date & Heure

Hebrew Calendar Information - Learn Hebrew Calendar Months

Learn the 13 Hebrew months and how the lunisolar calendar works. Complete guide to the Jewish calendar system.

Date & Heure

Hebrew to Gregorian Date Converter - Free Jewish Calendar Tool

Convert Hebrew calendar dates to Gregorian calendar dates. Free online tool for date conversion between Hebrew and Gregorian systems.

Date & Heure

Holy Week Information - Orthodox Easter Traditions Guide

Learn about Holy Week observances and traditions in Eastern Orthodox Christianity. Complete guide to Orthodox Easter week.

Date & Heure

Holy Week Traditions - Easter Week Customs and Observances

Discover the various traditions and customs of Holy Week across different Christian denominations. Learn Easter week observances.

Date & Heure

Fiscal Year Calculator

Calculate fiscal year and its divisions.

Date & Heure

School Year Planner Calculator

Calculate weeks and days remaining in semester.

Date & Heure

Age Difference Calculator

Calculate age difference between two people.

Date & Heure

Billing Cycle Calculator

Calculate upcoming billing dates.

Date & Heure

Season Finder Calculator

Calculate current season and upcoming seasons.

Date & Heure

Moonrise Moonset Calculator

Calculate moonrise and moonset times.

Date & Heure

Date Range Overlap Calculator

Calculate overlap between two date ranges.

Date & Heure

Service Interval Calculator

Calculate upcoming service/maintenance dates.

Date & Heure

Work Shift Duration Calculator

Calculate work hours with break times.

Date & Heure

Solar Noon Calculator

Calculate solar noon time for your location.

Date & Heure

Sprint Duration Calculator

Calculate Agile sprint dates and working days.

Date & Heure

Leap Year Checker

Check if a year is a leap year.

Date & Heure

Bar Bat Mitzvah Calculator - Calculate Jewish Coming of Age Date

Calculate the Bar or Bat Mitzvah date for Jewish coming of age ceremony. Free calculator to determine the exact date of this important Jewish milestone.

Date & Heure

Yazidi Calendar Converter

Free online Yazidi calendar converter. Convert dates between Gregorian and Yazidi calendar systems instantly.

Date & Heure

Gregorian Date Converter