Yes - same issue. Excel is problematic with dates as they can only be stored in Text (as in your case) or effectively a number. If you bring it all into SharePoint, all of this will go away as the Date field also allows for the Time Zone of the server and local device.
You are going to need to add the TimeZoneOffset to every query reference of the data in your Table.
Also (depending on where you are based), TimeZoneOffset is a negative value, so you should need to reverse it to add to the field value.
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