"Sat, 18 Jan 2025 14:42:39"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250118
Only TIME
14:42:39
General datetime
2025-01-18 14:42:39Z
For Database
2025-01-18 14:42:39
For HTTP1.1
Sat, 18 Jan 2025 14:42:39 GMT