"Sat, 25 Jan 2025 18:27:51"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250125
Only TIME
18:27:51
General datetime
2025-01-25 18:27:51Z
For Database
2025-01-25 18:27:51
For HTTP1.1
Sat, 25 Jan 2025 18:27:51 GMT