Date conversion

12 date conversion tools in Dates & Time. Each one runs in this tab, so nothing you paste in leaves the machine.

All date conversion tools

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ISO 8601 Converter
Convert dates to all ISO 8601 representations
Date Parser
Parse any date string format into year, month, day
Excel Date Converter
Convert between Excel serial date numbers and calendar dates
RFC 2822 Converter
Convert dates to and from RFC 2822 email date format
Timezone Converter
Convert dates and times between IANA timezones
Date Formatter
Format dates using custom patterns like YYYY-MM-DD HH:mm:ss
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates
Julian Day Converter
Convert between Julian Day Numbers and calendar dates
Epoch Converter
Convert between Unix seconds, milliseconds, microseconds
Relative Time
Convert dates to human-readable relative format like '2 days ago'
Date to Words
Spell out any date in written English form
UTC Converter
Convert between local time and UTC