Tool · Time
Timestamp decoder
Paste an unknown number and see it decoded as Unix (s, ms, µs, ns), FILETIME, WebKit, Apple absolute, HFS+, GPS and FAT time, with plausibility flags.
LocalRuns entirely in this browser tab. Files are read from your device and are never uploaded.
Workspace
Epoch reference
| Encoding | Epoch (UTC) | Unit | Typical sources |
|---|---|---|---|
| Unix / POSIX | 1970-01-01 | s · ms · µs · ns | Linux, Android databases, many apps |
| Windows FILETIME | 1601-01-01 | 100 ns | NTFS, registry, LNK, Prefetch, EVTX |
| WebKit / Chromium | 1601-01-01 | µs | Chrome, Edge and other Chromium browsers |
| Apple absolute (Cocoa) | 2001-01-01 | s (float) · ns in some stores | iOS and macOS databases (sms.db, KnowledgeC) |
| HFS+ | 1904-01-01 | s | HFS+ volumes, older Mac formats |
| GPS | 1980-01-06 | s, no leap seconds | GNSS receivers, some vehicle and camera logs |
| FAT / DOS | 1980-01-01 | 2 s, local time | FAT12/16/32, ZIP entries |
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