"Tue, 21 Jan 2025 19:21:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250121
Only TIME
19:21:19
General datetime
2025-01-21 19:21:19Z
For Database
2025-01-21 19:21:19
For HTTP1.1
Tue, 21 Jan 2025 19:21:19 GMT