"Sun, 19 Jan 2025 18:43:41"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
18:43:41
General datetime
2025-01-19 18:43:41Z
For Database
2025-01-19 18:43:41
For HTTP1.1
Sun, 19 Jan 2025 18:43:41 GMT