解析带时区的日期，跳过时区

Question

I try to parse date from string which contains time zone information. Input string is 2014-12-17T08:05:39+00:00 .

I use DateTime.Parse() method which return me 2014-12-17 09:05:39 (one hour was added). I live in UTC+1:00 (Warsaw) , so .NET adopt this date to my local time.

My question is how to use the parse method while skipping time zone, for example for 2014-12-17T08:05:39+00:00 I want to get 2014-12-17 08:05:39 .

Answer 1

I would recommend parsing it as a DateTimeOffset instead of as a DateTime . You can then get the DateTime out of that, but it separates the "parsing the data you've been given" step from the "only using the bits I want from that" step.

It's possible that there are ways to make DateTime.Parse behave the way you want using DateTimeStyles - and I'm surprised it's converting to a "local" kind automatically anyway - but using DateTimeOffset will make it clearer.

(Of course I'd really recommend using Noda Time instead, parsing to an OffsetDateTime and then getting the LocalDateTime out of that, but that's a different matter...)

Answer 2

If you remove the part specifying time zone in input string then it parses directly without adjusting to local time. The date.Kind is then Unspecified .

var input = "2014-12-17T08:05:39";
var date = DateTime.Parse(fixedInput);

Although this works you might want to have a look on NodaTime as well.

Answer 3

You should try using DateTimeOffset instead of the DateTime

DateTimeOffset result = DateTimeOffset.Parse("2014-12-17T08:05:39+00:00", CultureInfo.InvariantCulture);

it gives you : 12/17/2014 8:05:39 AM +00:00