[Feature Request] Clock module: Support dynamic time zones (to auto-switch daylight saving time)

[hengginator]

Describe the bug/idea
To align alternative time zones in the clock module closer to reality (actually used time), it would be great to support dynamic daylight saving zone configuration (to auto-reflect actually used time for certain area/city).
As time zones are currently based on direct "UTC offset" only, it cannot auto-switch with summer/winter time change (daylight saving time) for a certain desired clock entry.

A very simple way of improving this would be allowing time zone config to be based on local time offset (ie: "localTime -2hrs" instead of only "UTC -2hrs"). For many time zones (ie: on the same continent usually) this would work fine as daylight saving times zone often change together.

For a global "full version" of such a feature a full "city time zone chart" resp. an zone index including information of winter/summer time start/end dates would be perfect since as daylight saving times are starting/ending on different dates globally.

Details:

• Device: [e.g. Macbook Pro 2016]
• macOS: [e.g. 10.15.5]
• Application version: [e.g. 2.1.11]

[exelban]

hi, thanks for the feedback.
I will take a look what could be done here.

[hengginator]

....time zone data could be sourced from TimezoneDB which offers offline data to download & implement, as well as a RestAPI (free even for commercial use under Creative Commons Attribution 3.0 License).

Alternatively there is also WorldTimeAPI.