47 lines
2.1 KiB
C#
47 lines
2.1 KiB
C#
/*
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*
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* (c) Copyright Ascensio System Limited 2010-2018
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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namespace System
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{
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public static class TimeZoneExtension
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{
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/// <summary>
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/// Get utc offset
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/// </summary>
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/// <param name="timeZone">timeZone</param>
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/// <param name="baseOffset">return BaseUtcOffset</param>
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/// <param name="dateTime">return GetUtcOffset(dateTime ?? DateTime.UtcNow)</param>
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/// <returns></returns>
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public static TimeSpan GetOffset(this TimeZoneInfo timeZone, bool baseOffset = false, DateTime dateTime = default)
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{
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if (baseOffset)
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return timeZone.BaseUtcOffset;
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return timeZone.GetUtcOffset(dateTime == default ? DateTime.UtcNow : dateTime);
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}
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}
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}
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