"Sat, 18 Jan 2025 08:51:30"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250118
Only TIME
08:51:30
General datetime
2025-01-18 08:51:30Z
For Database
2025-01-18 08:51:30
For HTTP1.1
Sat, 18 Jan 2025 08:51:30 GMT