C# convert timestamp to datetime

C# convert Unix time in seconds to datetime

public static DateTime UnixTimeStampToDateTime( double unixTimeStamp )
{
    // Unix timestamp is seconds past epoch
    System.DateTime dtDateTime = new DateTime(1970,1,1,0,0,0,0,System.DateTimeKind.Utc);
    dtDateTime = dtDateTime.AddSeconds( unixTimeStamp ).ToLocalTime();
    return dtDateTime;
}

Source: stackoverflow.com

C# datetime to timestamp

DateTimeOffset.UtcNow.ToUnixTimeSeconds()

Source: stackoverflow.com

C# convert timestamp to datetime

DateTime authTimeUtc = DateTimeOffset.FromUnixTimeMilliseconds(long.Parse(filteredAuthUserClaims.AuthTimestamp)).DateTime;

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