Date Time (with Time Zone)

Schema Alias: Umbraco.DateTimeWithTimeZone

UI Alias: Umb.PropertyEditorUi.DateTimeWithTimeZonePicker

Returns: DateTimeOffset?

The Date Time with Time Zone property editor provides a comprehensive interface for selecting dates, times, and time zones. It stores values as ISO 8601 date/time strings with time zone information. This makes it ideal for applications that need accurate date handling across different time zones.

Configuration

You can configure this property editor in the same way as any standard property editor, using the Data Types admin interface.

To set up a property using this editor, create a new Data Type. Select Date Time (with time zone) from the list of available property editors.

You will see the configuration options as shown below.

• Time format - Specifies the level of precision for time values shown and stored by the editor.

• Time zones - Controls how time zones are available in the property editor.

Time format

• HH:mm - Displays hours and minutes (e.g., 14:30). Suitable for most general use cases.

• HH:mm:ss - Displays hours, minutes, and seconds (e.g., 14:30:45). Use this when you need more precise timing.

Time zones

• All - Displays the full list of Internet Assigned Numbers Authority (IANA) time zones (for example, America/New_York, Europe/Stockholm).

• Local - Displays only the local time zone of the user's browser/computer. Useful for simplifying the UI when time entries should always be based on the user’s local context.

• Custom - Allows you to define a list of time zones. When you select this option, a dropdown appears. You can search and select from the full IANA time zone list. Add multiple zones to restrict user selection to only the zones you specify.

  • Example: Selecting the following time zones:

    • Coordinated Universal Time (UTC)

    • Europe/Copenhagen Will result in the following editing experience:

The selected time zone affects how the date/time is displayed and stored. When you select a time zone, the value will be saved with the corresponding offset (e.g., 2025-01-01T14:30:00+01:00). Daylight saving time is also taken into account.

Editing experience

Adding or editing a value

You will be presented with date, time, and time zone inputs. The time zone input allows typing, which filters the list of presented time zones.

If your browser time zone appears in the list and no date is stored yet, it will be pre-selected by default.

When you select a time zone different from your browser's local time zone, the editor displays a helpful conversion message. This shows what the selected date and time would be equivalent to in your local time zone, making it easier to understand the time difference.

If only one time zone is available, you will see a label with the time zone name instead.

Rendering

The value returned will have the type DateTimeOffset?. This allows you to work with the date/time value while preserving time zone information.

Display the value

With Models Builder:

@Model.EventDateTime.Value

Without Models Builder:

@Model.Value<DateTimeOffset?>("eventDateTime")

Value conversions

Convert to local time:

DateTimeOffset? localTime = Model.EventDateTime?.ToLocalTime();

Convert to UTC time:

DateTimeOffset? utcTime = Model.EventDateTime?.ToUniversalTime();

Convert to DateTime:

DateTime? dateTime = Model.EventDateTime?.DateTime;
DateTime? utcDateTime = Model.EventDateTime?.UtcDateTime;

Add values programmatically

This property editor stores values as a JSON object. The object contains both the date (as an ISO 8601 string) and the selected IANA time zone identifier.

Storage format

The property editor stores values in this JSON format:

{
    "date": "2025-01-01T00:01:00+01:00",
    "timeZone": "Europe/Copenhagen"
}

1. Create a C# model that matches the JSON schema.

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   using System.Text.Json.Serialization;
   
   namespace UmbracoProject;
   
   public class DateTimeWithTimeZone
   {
       /// <summary>
       /// The date and time value, represented as a <see cref="DateTimeOffset"/>.
       /// </summary>
       [JsonPropertyName("date")]
       public DateTimeOffset Date { get; init; }
   
       /// <summary>
       /// The identifier of the time zone to pre-select in the editor. E.g., "Europe/Copenhagen".
       /// </summary>
       [JsonPropertyName("timeZone")]
       public string TimeZone { get; init; }
   }

2. Create an instance of the created class with the desired values.

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   var value = new DateTimeWithTimeZone
   {
       Date = DateTimeOffset.Now, // The date and time value to store.
       TimeZone = "Europe/Copenhagen" // The time zone to pre-select in the editor.
   };

3. Inject the IJsonSerializer and use it to serialize the object.

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   var jsonValue = _jsonSerializer.Serialize(value);

4. Inject the IContentService to retrieve and update the value of a property of the desired content item.

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   IContent content = _contentService.GetById(contentKey) ?? throw new Exception("Content not found");
   
   // Set the value of the property with alias 'eventDateTime'. 
   content.SetValue("eventDateTime", jsonValue);
   
   // Save the change
   _contentService.Save(content);