IOS Safari Converting the Time on the Date Incorrectly

[davidmyers-a]

The times of events downloaded in iOS Safari browser are all off by a number of hours since the latest update.
I pin pointed it to the time.js code. When converting the date time from ISO format to the format used in ICS it seems unlike all the other browsers Safari on iOS is converting the javascript date but then adding the timezone offset automatically. Which means if a send the library a date of 2020-06-22T12:00:00 expecting it to be an event at 12pm it is converting it to 20200622T220000 which is 10pm (because I am in UTC+10).
This only happen on iphones, if i do it on Android Chrome or Desktop Firefox/Chrome then the date is fine. Additionally if i forward the invite to my iphone after creating it on the PC its fine, so its the creation of the date in the library.

Dunno how to resolve that other than instead of converting the the ISO date to a date object maybe just use regex to strip ou the '-' and ':' so it never converts the date sent. This would mean people could only send ISO format without timezone etc...
Date = Date.replace(/-|:/g, '');

Either way thought I'd raise the issue in case it impacts others.

[jshor]

It appears that this issue affects multiple browsers unfortunately. Turns out that when the date is parsed as a string, the timezone won't be parsed if it's not passed in.

As of v4.1.8, you'll now be able to pass the start and end params as Date objects instead of strings, which gives you full control over the date and timezone

Note that passing dates as strings is still supported for backward compatibility, but will be removed in v5.0.0.

[jshor]

Just a heads up: v4.1.9 will correct date/time to enforce UTC -- in other words, the timezone that the user is in will be the timezone that is used in the calendars.