Unix timestamp guide | UnixDate
Developer guide for working with Unix timestamps safely and predictably.
The Year 2038 problem
Systems that store time as a signed 32‑bit integer overflow on 2038‑01‑19 03:14:07 UTC (timestamp 2147483647).
Who is affected?
- Legacy 32‑bit systems and embedded devices
- Old libc / time APIs on certain platforms
- Databases or protocols that still use 32‑bit epoch
Mitigations
- Use 64‑bit time types
- Validate input range at boundaries
- Plan firmware updates for embedded fleets early