"Sun, 19 Jan 2025 13:42:44"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
13:42:44
General datetime
2025-01-19 13:42:44Z
For Database
2025-01-19 13:42:44
For HTTP1.1
Sun, 19 Jan 2025 13:42:44 GMT