"Sat, 18 Jan 2025 19:57:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250118
Only TIME
19:57:57
General datetime
2025-01-18 19:57:57Z
For Database
2025-01-18 19:57:57
For HTTP1.1
Sat, 18 Jan 2025 19:57:57 GMT