"Sun, 19 Jan 2025 23:14:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
23:14:45
General datetime
2025-01-19 23:14:45Z
For Database
2025-01-19 23:14:45
For HTTP1.1
Sun, 19 Jan 2025 23:14:45 GMT