I'm trying to save date (using C# official driver):
val = DateTime.Parse(value).Date; //Here date is {11/11/2011 12:00:00 AM}
var update = Update.Set("Date", val);
...
When I select Date from the database, the value is {11/10/2011 10:00:00 PM}
How to save only the date I want?
c# driver by default (without extra settings) saving local dates as utc date into database (date - time zone offset) but reading back without any action (so, utc date).
Because of this when you loading datetime from database you receive diff in 2 hours (your timezone offset). There are two approaches how to say to mongodb c# driver convert utc dates to local timezone dates during deserialization:
1.through the attributes for particular date field:
[BsonDateTimeOptions(Kind = DateTimeKind.Local)]
public DateTime SomeDateProperty {get;set;}
2.through global settings for all datetime fields (default is UtcInstance
):
DateTimeSerializationOptions.Defaults = DateTimeSerializationOptions.LocalInstance;
Once you will do #1 or #2 you will see local date.
Update:
#2 is obsolete in latest driver version so use code below instead:
BsonSerializer.RegisterSerializer(typeof(DateTime),
new DateTimeSerializer(DateTimeSerializationOptions.LocalInstance));
Update:
#2 has changed again:
BsonSerializer.RegisterSerializer(typeof(DateTime), DateTimeSerializer.LocalInstance);