ceph/src/arrow/csharp/src/Apache.Arrow/Extensions/TimeSpanExtensions.cs

   1 // Licensed to the Apache Software Foundation (ASF) under one or more
   2 // contributor license agreements. See the NOTICE file distributed with
   3 // this work for additional information regarding copyright ownership.
   4 // The ASF licenses this file to You under the Apache License, Version 2.0
   5 // (the "License"); you may not use this file except in compliance with
   6 // the License.  You may obtain a copy of the License at
   7 //
   8 //     http://www.apache.org/licenses/LICENSE-2.0
   9 //
  10 // Unless required by applicable law or agreed to in writing, software
  11 // distributed under the License is distributed on an "AS IS" BASIS,
  12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 // See the License for the specific language governing permissions and
  14 // limitations under the License.
  15
  16 using System;
  17
  18 namespace Apache.Arrow
  19 {
  20     public static class TimeSpanExtensions
  21     {
  22         /// <summary>
  23         /// Formats a TimeSpan into an ISO 8601 compliant time offset string.
  24         /// </summary>
  25         /// <param name="timeSpan">timeSpan to format</param>
  26         /// <returns>ISO 8601 offset string</returns>
  27         public static string ToTimeZoneOffsetString(this TimeSpan timeSpan)
  28         {
  29             string sign = timeSpan.Hours >= 0 ? "+" : "-";
  30             int hours = Math.Abs(timeSpan.Hours);
  31             int minutes = Math.Abs(timeSpan.Minutes);
  32             return sign + hours.ToString("00") + ":" + minutes.ToString("00");
  33         }
  34     }
  35 }