FREE
Age Calculator
Calculate completed years, months and days, total days lived and your next birthday from a birth date.
Date & Time
Calculate ages and date differences, count working days and convert timezones.
Date & Time
Result: 18
FREE
Business Days Calculator
Count weekdays between dates, excluding optional holidays.
FREE
Cron Expression Builder
Build a five-field cron schedule and preview future runs.
FREE
Cron Expression Parser
Explain a cron expression and preview its next five runs.
FREE
Date Difference Calculator
Measure elapsed days, hours and seconds between two dates.
FREE
Date to Epoch
Convert an explicit ISO date or instant into epoch units.
FREE
Epoch to Date
Convert epoch seconds or milliseconds into an ISO date.
FREE
Hijri Calendar Converter
Convert Gregorian dates to Hijri and back using a stated tabular calendar, with a configurable day adjustment.
FREE
Indonesia City Time & Timezone Converter
Convert a chosen local time between Indonesian cities in WIB, WITA and WIT with the correct calendar date.
FREE
Indonesia Holiday Calendar
Browse official 2026 and 2027 national holidays and collective leave, and export calendar or tabular data.
FREE
Indonesian Date Formatter
Format a calendar date in Indonesian with its weekday, month name and selectable long or short style.
FREE
ISO Date Converter
Normalize a date or offset-bearing instant to UTC ISO 8601.
FREE
Javanese Calendar & Weton
Explore a Gregorian month with Javanese pasaran, birth weton and neptu, without personality or fortune predictions.
FREE
Ramadan & Eid Countdown
Count days to Ramadan or Eid using the tabular calendar, or enter an announced date from your local authority.
FREE
Timezone Converter
Convert an offset-bearing instant to another timezone.
FREE
Unix Timestamp Converter
Inspect a Unix timestamp as ISO, UTC and epoch units.
FREE
Unix Timestamp Generator
Capture the current time as a Unix timestamp.
FREE
UTC to Local Time
Display a UTC instant in a selected IANA timezone.