Date & time tools
Timestamps, timezones, durations and cron schedules — convert and calculate dates and times.
Age Calculator
Calculate your exact age from your date of birth — years, months and days, next birthday countdown and total days lived. Free, private, in-browser.
Current UTC Time
See the current UTC date and time, updating live in your browser. No sign-up, runs offline.
Cron Next Run Times
Cron expression parser and next-run calculator — see upcoming run times in UTC with plain-English schedules, free and entirely in your browser.
Date Difference Calculator
Calculate the exact duration between two dates: years, months, days, hours, minutes and seconds, with leap years handled. Free, private, in-browser.
Extract Dates
Scan any text for dates and times and list them normalized to ISO 8601 — in your browser. Handles ISO, numeric, month-name, and clock formats. No upload.
Date / Time Parser
Parse a date or time in almost any format — ISO 8601, RFC 2822, US/European dates — into year, month, day, weekday, ISO week and a canonical ISO 8601 value.
Seconds to HH:MM:SS
Convert seconds into HH:MM:SS, D:HH:MM:SS, ISO-8601, or human-readable duration text with optional fractional seconds. Runs locally in your browser.
Time to Decimal Hours Converter
Convert HH:MM to decimal hours (1:30 → 1.5) and back for timesheets, payroll and billing — plus total minutes and seconds. Free, private, in-browser.
Timezone Converter & Meeting Planner
Convert a date and time across multiple timezones with correct DST handling and a 24-hour meeting planner grid. Full IANA database — free, private, in-browser.
Unix timestamp converter
Convert Unix timestamps (seconds, milliseconds, microseconds, nanoseconds) to UTC dates, or parse human-readable dates back to epoch timestamps. Free, private, no upload.