Epoch and FILETIME converter
Convert Unix time and Windows FILETIME values (such as lastLogonTimestamp) to dates.
Runs in your browser. Nothing you type is sent to the server.
About this tool
Paste a Unix timestamp in seconds or milliseconds, an 18-digit Windows FILETIME such as an Active Directory lastLogonTimestamp or pwdLastSet value, or a date such as 2026-10-24 09:30. The tool shows the same moment in every format. FILETIME counts 100-nanosecond steps since 1 January 1601 UTC.