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Asked: 2026-05-14T03:48:43+00:00

I have a data structure where an entity has times stored as an int

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I have a data structure where an entity has times stored as an int (minutes into the day) for fast comparison. The entity also has a Foreign Key reference back to a TimeZone table which contains the .NET CLR ID Name and it’s Standard Time/Daylight Time acronyms.

Since this information is stored as time-zone insensitive – I was wondering how in LINQ to SQL I could convert this into a UTC DateTime for comparison against other times that will be in UTC.

Just to be clear this conversion has to be done server-side so that I can execute filtering on the SQL Server and not the client. The reason for this is to ensure we take into account DST for time zones that support it.

I am using .NET 3.5 SP1 and SQL Server 2008.

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1 Answer

  1. Editorial Team

    I can store a CurrentOffset field that will need to be updated by a script that will be updated on the hour, every hour to determine the contextual offset.

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