Heure et date
Outils d'âge, de différence de dates et d'horodatage
Choisissez un outil ci-dessous. Tout est gratuit et s'exécute dans votre navigateur.
⏰ Heure et date · Total 28 outils
Calculatrice d’âgeOnline age calculator: enter birthdate to get exact age in years/months/days, total days/hours, next birthday countdown, zodiac with Gregorian/lunar support.
Calculateur de différence d'âgeCalculate the difference between two dates in years, months and days. Calculates age gap in years/months/days with leap year support.
Réveil en ligneOnline alarm clock tool: set time and ringtone with fullscreen and background alert for daily and work reminders, with one-click copy, offline.
Horloge binaireBinary clock tool: show real-time binary clock with multi-format and learning mode for study and geek, with one-click copy, offline.
Compte à rebours d'anniversaireBirthday countdown tool: get countdown and age from birthday with reminders for wishes and anniversaries, with one-click copy, offline.
MinuteurCountdown timer: set hours/minutes/seconds with fullscreen, sound alerts and loop for exams, workouts and presentations Supports batch processing and one-click copy.
Ajouter ou soustraire des joursDate add/subtract tool: add or subtract days, weeks and months from a date handling month-end and leap years for scheduling, with one-click copy and offline.
Compte à rebours de dateDate countdown: pick target date to get remaining days, hours and minutes with holiday and anniversary reminders for planning.
Calculatrice de différence entre datesDate difference calculator: count days, weeks, months, business and weekend days between dates with auto order handling, one-click copy and offline.
Convertisseur de format de dateDate format converter: enter date to convert to ISO, US, EU, RFC and timestamp with bulk for development and data, with one-click copy and offline.
Infos sur une dateDate info calculator: enter date to get weekday, leap year, day of year and quarter with holiday marks for calendar and work planning.
Convertisseur de date ExcelExcel date converter: convert between Excel serial numbers and dates 1900 system with bulk and formatting for office data, with one-click copy and offline.
Compte à rebours des fêtesFestival countdown tool: cover Chinese lunar and Gregorian festivals automatically counting down to next festival for planning, with one-click copy and offline.
Japan Era ConverterJapan era converter: enter Gregorian year to get Reiwa/Heisei/Showa era for Japan, multilingual.
Vérificateur d'année bissextileLeap year checker: check any year with Gregorian rules showing February days and nearby leap years for learning and calendar, with one-click copy and offline.
Calendrier lunaire chinoisLunar calendar: convert Gregorian and lunar dates with solar terms, festivals and almanac for traditional holidays. Supports batch processing and one-click copy.
Calculateur d'heure de réunionMeeting time calculator: enter start and end time to get duration, cost and person-hours with multi-timezone for meeting cost and efficiency.
Planificateur de réunionsMeeting planner: pick two time zones and work hours for the overlap window plus converted times, with one-click copy.
Calculatrice de phases lunairesMoon phase calculator: enter date to get moon phase, illumination and next full moon with lunar and astronomy data for stargazing.
ChronomètreStopwatch timer: support start pause reset and laps with milliseconds and history for sports and lab timing, with one-click copy, offline and multilingual.
Calculatrice de temps relatifTime ago calculator: calculate interval from a time to now with just now, minutes and days and timestamp conversion, one-click copy and offline.
Calculatrice de duréeTime duration calculator: get duration from start end with multi-segment sum and unit conversion for scheduling, with one-click copy, offline.
Convertisseur de timestampTimestamp converter: convert Unix seconds to dates showing local and UTC with weekday for development, with one-click copy and offline.
Convertisseur de fuseaux horairesTimezone converter: convert time between source and target zones with multi-city view for meetings and travel, with one-click copy, offline and multilingual.
Décalage horaireTimezone diff calculator: get difference between two zones with DST and table for collaboration and travel, with one-click copy, offline.
Calculateur de numéro de semaineWeek number calculator: get ISO week number and start end dates from date for scheduling and projects, with one-click copy, offline.
Horloge mondialeWorld clock tool: show real-time multi-city times with difference and DST for collaboration and travel, with one-click copy, offline.
Recherche de signe astrologiqueZodiac sign finder: get zodiac sign from birthday with traits, fortune and match for fun and daily, with one-click copy, offline and multilingual.
FAQ
Qu'est-ce que la catégorie Heure et date ?
La catégorie Heure et date comprend 28 outils gratuits, tous dans le navigateur.
Ces outils sont-ils gratuits ?
Oui, tous gratuits et sans limite d'utilisation.
Faut-il s'inscrire ?
Non. Ouvrez la page et utilisez-la ; vos données restent locales.
Quelles langues sont prises en charge ?
This site supports 12 languages: Chinese, English, Japanese, Spanish, French, Portuguese, Arabic, Indonesian, Hindi, Thai, Vietnamese and Bengali.