"Sun, 19 Jan 2025 15:27:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
15:27:13
General datetime
2025-01-19 15:27:13Z
For Database
2025-01-19 15:27:13
For HTTP1.1
Sun, 19 Jan 2025 15:27:13 GMT