"Sun, 19 Jan 2025 19:21:38"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
19:21:38
General datetime
2025-01-19 19:21:38Z
For Database
2025-01-19 19:21:38
For HTTP1.1
Sun, 19 Jan 2025 19:21:38 GMT