xenadmin/XenCenterLib/TimeUtil.cs
Konstantina Chremmou 566c6f0219 Namespace tidy 1/several: replaced Citrix.XenCenter with XenCenterLib.
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
2017-11-30 13:56:32 +00:00

69 lines
2.7 KiB
C#

/* Copyright (c) Citrix Systems, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
using System;
using System.Globalization;
namespace XenCenterLib
{
public class TimeUtil
{
public const long TicksBefore1970 = 621355968000000000;
public const string ISO8601DateFormat = "yyyyMMddTHH:mm:ssZ";
public static long TicksToSeconds(long ticks)
{
return ticks / 10000000;
}
public static long TicksToSecondsSince1970(long ticks)
{
return (long)Math.Floor(new TimeSpan(ticks - (TicksBefore1970)).TotalSeconds);
}
/// <summary>
/// Parses an ISO 8601 date/time into a DateTime.
/// </summary>
/// <param name="toParse">Must be of the format yyyyMMddTHH:mm:ssZ. Must not be null.</param>
/// <returns>The parsed DateTime with Kind DateTimeKind.Utc.</returns>
public static DateTime ParseISO8601DateTime(string toParse)
{
return DateTime.ParseExact(toParse, ISO8601DateFormat, CultureInfo.InvariantCulture, DateTimeStyles.AdjustToUniversal);
}
public static string ToISO8601DateTime(DateTime t)
{
return t.ToUniversalTime().ToString(ISO8601DateFormat, CultureInfo.InvariantCulture);
}
}
}