"Sun, 19 Jan 2025 09:35:30"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
09:35:30
General datetime
2025-01-19 09:35:30Z
For Database
2025-01-19 09:35:30
For HTTP1.1
Sun, 19 Jan 2025 09:35:30 GMT