It sounds like you need to store a DateTimeOffset instead of a DateTime. You could just store the local DateTime to the user creating the value, but that means you can’t perform any ordering operations etc. You can’t just use DateTime.UtcNow, as that won’t store anything to indicate the local date/time of the user when … Read more
Until custom primitive type persistence is natively supported in Entity Framework, a common work around is to use buddy properties. For each custom primitive within your domain model, you create an associated mapped primitive to hold the value in a format supported by Entity Framework. The custom primitive properties are then calculated from the value … Read more
I did a bit of research and it seems that the NodaTime way is to get the now moment according to a clock. If you want to get the current time using the system clock, just use SystemClock.Instance.GetCurrentInstant(). However, instead of using the SystemClock.Instance directly in your code, it’s preferable that you inject an IClock … Read more
Current Status: Starting with .NET 6, both forms of time zones are supported on any platform that has both time zone data and ICU installed, which is most installations of Windows, Linux, and MacOS. See Tobias’s answer. Original Answer: The primary source of the data for conversion between Windows and IANA time zone identifiers is … Read more