no CLDR symbol
Unix timestamp.
1136239445
at the reference instant, Mon, Jan 2 2006, 3:04:05 PM MST
Whole seconds since 1970-01-01T00:00:00Z (1136239445 at the reference). No CLDR symbol exists; POSIX strftime added %s in 2008, and several languages leave it out of format strings entirely in favor of a method call.
| Language | Token | Caveat |
|---|---|---|
| Moment.js format | X | Seconds; lowercase x gives milliseconds. |
| PHP date() | U | |
| Ruby strftime | %s | |
| Rust chrono | %s | Seconds since 1970-01-01 00:00 UTC. |
Definition anchored to POSIX strftime specification.