Getting Files LastWriteTime

narayanagvs

Hi, I need to get the Files last Modified Date.Iam given a Zip File by our client on extracting it I get many files, say I got a File A.txt. whose modified date is 2/19/2008 06:30:00 A.M. Iam using

   DateTime \_datetime;
   String str = "C:\\\\A.txt"
   FileInfo filinf = new FileInfo(str);
   \_datetime = filinf.LastWriteTime;

I get the correct output in _datetime. Now , If I change my System TimeZone from ( GMT +5:30)chennai... to (GMT -8:00)Pacific Time (US & Canada) and then again extract the Zip file to get file "A" with modified date as 2/19/2008 06:30:00 A.M and execute the same code I get it as 2/20/2008 05:30:00 A.M. Why is it So?There is an offset of 1 hour. I need Files Last Modified Date(say here 2/19/2008 06:30:00 A.M only) Irrespective of TimeZones Iam In. Any suggestions would be appreciated. Thanks Satya

Today is a gift, that's why it is called the present.

Abhijit Jana

I think you should use Globalization For that. User RegionInfo Class and Try to use the date time from that class. This is just my idea !!!

Best Regards ----------------- Abhijit Jana Microsoft Certified Professional "Success is Journey it's not a destination"

narayanagvs

I got the solution

FileInfo filinf = new FileInfo(FileName);
_datetime = filinf.LastWriteTime;

DaylightTime dlt = TimeZone.CurrentTimeZone.GetDaylightChanges(_datetime.Year);
//String strHrs = dlt.Delta.Hours.ToString();
_datetime = _datetime.AddHours(Convert.ToDouble(dlt.Delta.Hours));
_datetime = _datetime.AddMinutes(Convert.ToDouble(dlt.Delta.Minutes));
_datetime = _datetime.AddSeconds(Convert.ToDouble(dlt.Delta.Seconds));

Thanks

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Luc Pattyn

Hi, you have a problem with FileInfo.LastWriteTime? if you read the documentation, you should notice the very next item in MSDN is FileSystemInfo.LastWriteTimeUtc :)

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Dave Kreskowiak

Use LastWriteTime**Utc** instead. The LastWriteTime property is adjusted for timezone and daylight savings time, while the UTC version is not.

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