"Sat, 18 Jan 2025 23:23:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250118
Only TIME
23:23:10
General datetime
2025-01-18 23:23:10Z
For Database
2025-01-18 23:23:10
For HTTP1.1
Sat, 18 Jan 2025 23:23:10 GMT