Ask user for difference between system time and current time, zone agnostic

1. How to get current timezone offset in JavaScript?
2. How to get timezone offset for specific timezone in JavaScript?
3. What is system time and time zone in SAP?

How to get current timezone offset in JavaScript?

JavaScript Date getTimezoneOffset()

getTimezoneOffset() returns the difference between UTC time and local time. getTimezoneOffset() returns the difference in minutes. For example, if your time zone is GMT+2, -120 will be returned.

How to get timezone offset for specific timezone in JavaScript?

The JavaScript getTimezoneOffset() method is used to find the timezone offset. It returns the timezone difference in minutes, between the UTC and the current local time. If the returned value is positive, local timezone is behind the UTC and if it is negative, the local timezone if ahead of UTC.

What is system time and time zone in SAP?

The system time and the system date are the local time and local date in AS ABAP in the system time zone. They are produced by regular synchronizations between the clock of the ABAP runtime server and the clock of the database server.