The week, month, and year time intervals must be based on the calendar for the time slider in an ArcGIS Online web map.

Additional Information

Workaround

Please retrieve the following workaround:

1. Open the JSON file in ArcGIS Online Assistant. There is a section for the time slider widget.
2. Add currentTimeExtent to match the startTime for it to work as needed.

"widgets": {

   "timeSlider": {

      "properties": {

         "startTime": 1372636800000,

         "endTime": 1467331260000,

         "thumbCount": 2,

         "thumbMovingRate": 2000,

         "currentTimeExtent": [

            1372636800000,

            1372636800000

         ],

         "timeStopInterval": {

            "interval": 1,

            "units": "esriTimeUnitsYears"

         }

      }

   }

},

Source: https://community.esri.com/t5/arcgis-online-questions/arcgis-online-time-slider-interval/td-p/690536

Steps to Reproduce