Reorganized Docs. In Progress.

docs/Date/Timezone.md

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+1. At Windows, sync to ntp timeserver. Examples:
+  - `time.windows.com`
+  - `ntp.ubuntu.com`
+  - `ntp1.kolumbus.fi`
+
+2. Dual boot to Qubes OS. At desktop top right calendar/time, set timezone to Etc/UTC.
+
+3. At server and it's KVM VMs, edit `/etc/timezone` to `Etc/UTC`.
+
+4. Update time at server:
+
+```
+sudo apt -y install ntpdate
+
+sudo ntpdate ntp.ubuntu.com
+```
+
+5. Now local time shows correctly at webbrowser, like for example at Friend Desktop https://github.com/wekan/wekan/wiki/Friend
+
+For testing any other time related code, that it shows correct local time, compare time functions results to this:
+
+https://github.com/FriendUPCloud/friendup/blob/master/interfaces/web_desktop/apps/Convos/Scripts/chatlog.fui.js#L694
+
+From Hogle Titlestad:
+
+> Oh, and the most important thing.
+> The first argument is a time string.
+> Seconds. Not a normal date.
+> Such that you can subtracck and add seconds to it.
+> So input would be:
+> ```
+> this.parseDate( 1695981700956, false, 'Europe/Oslo' );
+> ``` 
+> e.g. Europe/Oslo is the server time zone.
+> The timestamp is server time.
+> For the event in question.
+
+