"Sat, 18 Jan 2025 13:13:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250118
Only TIME
13:13:23
General datetime
2025-01-18 13:13:23Z
For Database
2025-01-18 13:13:23
For HTTP1.1
Sat, 18 Jan 2025 13:13:23 GMT