I got the ‘pick your time zone’ working. Gonna go with it for now 
- User picks Google or ICS
- User picks time zone
- Download link is generated via template columns

I got the ‘pick your time zone’ working. Gonna go with it for now 

You appear to be missing 100 or so time zones 
Hi Jeff! This is fantastic! I got the Gcal link to work and the ICS version to work on my desktop, but the ICS version does not download the ICS file when it is a link in my Glide mobile app. Any tips to troubleshoot?