"Sun, 19 Jan 2025 18:27:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
18:27:56
General datetime
2025-01-19 18:27:56Z
For Database
2025-01-19 18:27:56
For HTTP1.1
Sun, 19 Jan 2025 18:27:56 GMT