how to get the IST from google calendar using google API

Question

In my calendar time shows are in IST In my application using Google calendar API I am getting time in GMT How to get events time in IST i.e GMT+05.30

                request.TimeMin = dtStart;
                request.TimeMax = dtEnd;
                request.ShowDeleted = false;
                request.SingleEvents = true;
              //  request.TimeZone = "Asia/Calcutta";

Answer 1

The Google .net client library appears to be doing some fun stuff with your date.

Code ripped from the Calendar v3 dll

Source can be found here

/// <summary>The date, in the format "yyyy-mm-dd", if this is an all-day event.</summary>
        [Newtonsoft.Json.JsonPropertyAttribute("date")]
        public virtual string Date { get; set; } 

        /// <summary>The time, as a combined date-time value (formatted according to RFC3339). A time zone offset is
        /// required unless a time zone is explicitly specified in timeZone.</summary>
        [Newtonsoft.Json.JsonPropertyAttribute("dateTime")]
        public virtual string DateTimeRaw { get; set; }

        /// <summary><seealso cref="System.DateTime"/> representation of <see cref="DateTimeRaw"/>.</summary>
        [Newtonsoft.Json.JsonIgnore]
        public virtual System.Nullable<System.DateTime> DateTime
        {
            get
            {
                return Google.Apis.Util.Utilities.GetDateTimeFromString(DateTimeRaw);
            }
            set
            {
                DateTimeRaw = Google.Apis.Util.Utilities.GetStringFromDateTime(value);
            }
        }

code ripped from core lib here

 /// <summary>
        /// Parses the input string and returns <see cref="System.DateTime"/> if the input is a valid 
        /// representation of a date. Otherwise it returns <c>null</c>.
        /// </summary>
        public static DateTime? GetDateTimeFromString(string raw)
        {
            DateTime result;
            if (!DateTime.TryParse(raw, out result))
            {
                return null;
            }
            return result;
        }

My Suggestion:

I suggest you take the raw string datetimeRaw and cast it to a date yourself. I should probably add an issue to the client lib to add a true date cast to date as well instead of always casting it to local time.

I added a bug / feature request on the client lib [Calendar V3 generated] date cast to local time but not actual