LDAP Timestamp to Date Converter
Convert Active Directory LDAP or Windows FILETIME integers into readable dates with UTC and local display.
Decode Active Directory LDAP timestamps
Directory attributes such as whenCreated and lastLogonTimestamp store time as 100-nanosecond intervals since 1 January 1601 UTC.
Paste the integer from PowerShell, LDAP queries, or log exports to see the matching calendar date in your local timezone and UTC.
Need the opposite direction? Use the Date to LDAP Timestamp Converter. For Unix epoch values, try the Epoch Unix Timestamp Converter.
Frequently Asked Questions
Is LDAP timestamp the same as Windows FILETIME?
Yes. Both names refer to the same 100-nanosecond tick count anchored at the Windows epoch.
Why does my value have 18 digits?
Modern dates accumulate a large tick count across centuries. Leading zeros are uncommon, but the magnitude is expected.
What if the converter shows an error?
Confirm the string contains digits only and was copied without commas or scientific notation from a spreadsheet.
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