DateKit
Unix Timestamp Converter
Convert date-time values to Unix and decode Unix seconds or milliseconds into local, UTC, and ISO output.
Timestamp Notes
The converter auto-detects unit by magnitude: typical 10-digit values are treated as seconds, larger values as milliseconds.
Returned values include local time, UTC text, and ISO-8601 so you can copy directly into logs, APIs, and incident timelines.
If results look shifted, verify your source timestamp timezone assumptions before comparing system events.
Need to compute elapsed time between incidents? Use Days Between Dates after converting raw timestamps.
FAQ
How does unit detection work?
DateKit treats typical 10-digit values as Unix seconds and larger values as Unix milliseconds.
Does this use my timezone?
Yes. Output includes local browser time plus UTC/ISO values so you can compare across systems.
Can I paste timestamps from logs directly?
Yes. Paste numeric timestamps from logs, alerts, or API payloads to decode them instantly.