I am reading a date from an xml file and parsing it to a my desired format. It i adding a day to the date and i cant seem to figure out why.
input : 2014-02-12T15:21:19-08:00
output : 13 Feb 2014 01:21
Here is my code to parse date:
string date = DateTime.Parse(row["CountDate"].ToString()).ToString("dd MMM yyyy HH:mm");
Any help will be greatly appreciated.
The reason is that the timezone information is being used to adjust the time to your local time zone.
If you remove the "-08:00" suffix, you'll find that the time won't be adjusted. However, you need to know whether the timezone information is important before ignoring it!
Well it looks like what you have is a UTC date/time with an 8 hour offset, when you parse the date what you have is an instance of the local time (Parse will take into account the offset).
If you are only interested in the UTC date/time then you can parse just that particular information
DateTime.ParseExact("yyyy-MM-ddTHH:mm:ss", row["CountDate"],
CultureInfo.InvariantCulture);
Related
I need to set expire date of product as present date till midnight as shown below in UTC format.
"2021-05-28T23:59:59Z"
How i can write this in C#.
Use DateTime.UtcNow.Date
DateTime.UtcNow.Date.AddDays(1).AddSeconds(-1).ToString("o")
The output of above is
2021-05-28T23:59:59.0000000Z
In c#, I do this
DateTime.Now.ToString("yyyy-dd-M--HH-mm-ss")
but it gets me the server time. However I also have the offset in this format for example "-04:00". How can I combine the offset to get the local time?
Thanks
If you mean that you want to get the server's system local time including offset, then use the DateTimeOffset.Now property. Then format it as desired.
DateTimeOffset.Now.ToString("yyyy-MM-dd HH:mm:ss zzz")
The zzz specifier produces the offset as a string in the ISO 8601 extended format, that you asked for.
If what you mean is you have a UTC offset from elsewhere and you want to apply it to the current UTC time from the server, then do the following instead:
TimeSpan offset = TimeSpan.Parse("-04:00");
DateTimeOffset now = DateTimeOffset.UtcNow.ToOffset(offset);
string result = now.ToString("yyyy-MM-dd HH:mm:ss zzz");
This takes the current server time, and applies the ToOffset function to adjust to the offset you provided.
Do keep in mind though that an offset is not the same as a time zone. The offset you have might be the one for the current date and time, or it might be for some other date and time in that time zone. For example, US Eastern Time is UTC-4 during daylight saving time, but UTC-5 during standard time. See "Time Zone != Offset" in the timezone tag wiki.
This worked.
DateTime.UtcNow.AddHours(DateTimeOffset.Parse("01/01/0001 00:00:00 -04:00").Offset.TotalHours).ToString("yyyy-dd-M--HH-mm-ss")
This should work
DateTime.UtcNow.AddHours(DateTimeOffset.Parse("01/01/0001 00:00:00 -04:00").Offset.TotalHours).ToString("yyyy-dd-M--HH-mm-ss",CultureInfo. InvariantCulture);
Need to add the directive
using System.Globalization;
I had a string in config file, defining date time with time zone.
I am not able to get this value, while reading values from config file.
In config file:
Setting name="abcdefgh" value="2012-08-10T22:00:00-08:00"
In C#, I am reading this as follows:
DateTime StartDate;
StartDate = DateTime.ParseExact(RoleEnvironment.GetConfigurationSettingValue("abcdefgh"), "yyyy-MM-dd HH:mm:ss", null);
Configuration.Instance.abcdefgh= StartDate;
In start date, i am getting 11 Aug, 2012 11:30:00, with no time zone.
I want to read it as it is. also tell, if my format of writing datetime in config file is correct
MSDN link to DateTimeOffset.
Use DateTimeOffset whenever you are referring to an exact point in
time. For example, use it to calculate "now", transaction times, file
change times, logging event times, etc. If the time zone is not
known, use it with UTC. These uses are much more common than the
scenarios where DateTime is preferred, so this should be considered
the default.
var date = DateTimeOffset.Parse("2012-08-10T22:00:00-08:00");
date.Offset // -08:00:00, offset from Coordinated Universal Time (UTC)
date.DateTime // 10/08/2012 22:00:00,
DateTime doesn't keep information about timezone. To parse the string and keep information about timezone - you should use DateTimeOffset structure.
Use the DateTimeOffset structure (and DateTimeOffset.ParseExact) if you want to store timezone information.
Your ParseExact format also doesn't quite match the setting value: it should have a zz at the end for the timezone information. You can also use DateTimeOffset.Parse since your setting string is in a standard format.
It's a standard format, so the ParseExact isn't needed, try:
StartDate = DateTime.Parse(RoleEnvironment.GetConfigurationSettingValue("abcdefgh"));
I substituted the hard-coded value you provided and got the correct result for my timezone (GMT-4) as
8/11/2012 2:00 AM
Note: as others mentioned, the timezone is not retained, so you will get the correct localized time corresponding to whatever timezone information was in the string, but you won't be able to find out what timezone that was. The DateTime.Kind property will reflect that it's a local time.
I am trying to convert a string value to a datetime value but am getting a System.FormatException error. This is because of the timezone info which is part of the date string. Is there any method which will be able to handle this conversion?
string date = "Wed, 04 Jan 2012 20:18:00 EST";
DateTime dt = Convert.ToDateTime(date);
Console.WriteLine(dt.ToString());
I don't believe there's any custom date and time format string which will parse or format a time zone abbreviation. You'll have to strip it out, parse the local part, work out which time zone is meant from the abbreviation (good luck with that - they're ambiguous) and then apply that time zone to the local time to get a UTC value (again, this can be ambiguous).
If you're in control of the format at all, I would try to avoid including time zone information if you can, or include an offset rather than a time zone if that's all that's important (an offset doesn't give the same information of course), or an unambiguous time zone identifier if you really need the time zone. Note that .NET uses the Windows system time zone identifiers; my own Noda Time project uses the more widespread Olson / zoneinfo / tz identifiers, if that's helpful to you.
Hi i have notice there two date times facebook gives, one is a date time from Unix Epoch and other is RFC 3339 Datetime (if i am not wrong). I wanted to know what is the best way to convert between each other. I have tried DateTime.TryParse() method but some times it dosent return the correct parsed date. Like it gives 21-Dec-2010 7:21:56 AM for 2010-12-21T01:51:56+0000. But it seems it doesn't parse time correctly. So plese tell how to change between epoch times and above datetime in C# datetime.
DateTime.Parse is converting a UTC date to your local timezone.
To retrieve the original UTC date, call ToUniversalTime().