Do you know of a free Calendar on Windows that imports/exports iCal & has its own Time Zone setting?

Do you know of a free LOCAL Calendar on Windows that imports/exports iCal &
that also has its own Time Zone setting?

Probably a free solution doesn't exist, but it might, which is why I ask.

CURRENT USE MODEL:
o I edit the local calendar on any device (Windows, Linux, iOS, Android)
o I export that calendar in iCal format periodically to anywhere on the LAN
o I import the iCal needed onto the device (mostly Windows & Android)

This works GREAT, with only one hitch.
o Separately, I randomly change Time Zones with the tzutil.exe command.
o This screws up the times of the local calendar (I'm using Rainlendar)
http://www.rainlendar.net/cms/index.php

DESIRED USE MODEL:
o All I want is what I have already (import & export of iCal files)
o And for the calendar to maintain its own time zone (not the system TZ!).

I know tools can do this since both DSClock & ClocX freeware do this.
DSClock (digital independent clock) https://www.dualitysoft.com/dsclock/
Clocx (analog independent clock) http://clocx.net/download.php
o But does any Calendar program have a setting for its own Time Zone?

All Calendar programs I've tried rely ONLY on the System Time Zone.
So my question is a long shot...

Do you know of a free LOCAL Calendar on Windows that imports/exports iCal &
that also has its own Time Zone setting?

On 4/5/19 10:44 AM, arlen holder wrote:
Do you know of a free LOCAL Calendar on Windows that imports/exports iCal &
that also has its own Time Zone setting?

Probably a free solution doesn't exist, but it might, which is why I ask.

CURRENT USE MODEL:
o I edit the local calendar on any device (Windows, Linux, iOS, Android)
o I export that calendar in iCal format periodically to anywhere on the LAN
o I import the iCal needed onto the device (mostly Windows & Android)

This works GREAT, with only one hitch.
o Separately, I randomly change Time Zones with the tzutil.exe command.
o This screws up the times of the local calendar (I'm using Rainlendar)
http://www.rainlendar.net/cms/index.php

DESIRED USE MODEL:
o All I want is what I have already (import & export of iCal files)
o And for the calendar to maintain its own time zone (not the system TZ!).

I know tools can do this since both DSClock & ClocX freeware do this.
DSClock (digital independent clock) https://www.dualitysoft.com/dsclock/
Clocx (analog independent clock) http://clocx.net/download.php
o But does any Calendar program have a setting for its own Time Zone?

All Calendar programs I've tried rely ONLY on the System Time Zone.
So my question is a long shot...

Do you know of a free LOCAL Calendar on Windows that imports/exports iCal &
that also has its own Time Zone setting?



Just a wild guess, but how about the calendar in Thunderbird?