"Sun, 19 Jan 2025 09:35:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
09:35:35
General datetime
2025-01-19 09:35:35Z
For Database
2025-01-19 09:35:35
For HTTP1.1
Sun, 19 Jan 2025 09:35:35 GMT