"Sun, 19 Jan 2025 18:43:55"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
18:43:55
General datetime
2025-01-19 18:43:55Z
For Database
2025-01-19 18:43:55
For HTTP1.1
Sun, 19 Jan 2025 18:43:55 GMT