Timestamp & epoch tools
Convert between every common time format — Unix, hexadecimal, .NET ticks, Windows FILETIME, WebKit/Chrome, Mac, NTP, SAS, GPS, Julian Day, Excel, Snowflake IDs and UUIDs — plus duration, date-difference, week-number and world-clock tools. All free, all in your browser.
⏱️Unix Timestamp ConverterConvert a Unix epoch timestamp (seconds or milliseconds) to a human-readable UTC and local date, and back.→🔢Hex Timestamp ConverterConvert a hexadecimal Unix timestamp to a date and back.→🟦.NET Ticks ConverterConvert .→🪟Windows FILETIME / LDAP ConverterConvert a Windows FILETIME or Active Directory / LDAP timestamp (100-ns intervals since 1601-01-01) to a date and Unix time, and back.→🌐WebKit / Chrome Timestamp ConverterConvert a WebKit/Chrome timestamp (microseconds since 1601-01-01) to a date and Unix time.→🍎Mac HFS+ Timestamp ConverterConvert a classic Mac / HFS+ timestamp (seconds since 1904-01-01) to a readable date and Unix time, and back.→🛰️NTP Timestamp ConverterConvert an NTP timestamp (seconds since 1900-01-01) to a readable date and Unix time, and back.→📊SAS Timestamp ConverterConvert a SAS datetime value (seconds since 1960-01-01) to a readable date and Unix time, and back.→📍GPS Time ConverterConvert GPS time (seconds since 1980-01-06, leap-second corrected) to UTC and Unix time, and back.→🔭Julian Day ConverterConvert a Julian Day Number (used in astronomy) to a calendar date and Unix time, and back.→📗Excel Date ConverterConvert an Excel / OLE Automation serial date number to a calendar date and Unix time, and back.→❄️Snowflake ID ConverterDecode a Discord, Twitter/X or Instagram Snowflake ID to the exact creation date and time.→🆔UUID Timestamp DecoderExtract the embedded creation timestamp from a version-1 (time-based) UUID.→⏳Duration ConverterConvert a duration in seconds to days, hours, minutes and human-readable words.→📅Date Difference CalculatorCalculate the number of days, weeks and the exact difference between two dates.→⏲️Countdown TimerA live countdown to any future date and time — or count up from a past one.→📆Day Number CalculatorFind the day-of-year number (1–366) for any date, plus its ISO week and weekday.→🗓️Week Number CalculatorFind the ISO-8601 week number for any date, plus the day of year and weekday.→🌍World ClockA live world clock showing the current time across major time zones — UTC, US, Europe, India, Asia and Australia.→📋Timestamp List ConverterConvert a whole list of Unix timestamps to readable dates at once.→⚠️Year 2038 ProblemWhat the Year 2038 problem is, when 32-bit Unix time overflows, and a live countdown.→