"Sat, 25 Jan 2025 15:36:27"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250125
Only TIME
15:36:27
General datetime
2025-01-25 15:36:27Z
For Database
2025-01-25 15:36:27
For HTTP1.1
Sat, 25 Jan 2025 15:36:27 GMT