"Sat, 25 Jan 2025 15:27:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250125
Only TIME
15:27:19
General datetime
2025-01-25 15:27:19Z
For Database
2025-01-25 15:27:19
For HTTP1.1
Sat, 25 Jan 2025 15:27:19 GMT