Change default date_options to 24 hour clock in TimestampedGeoJson (#914)

The default date format was ambiguous: 14:00 or 2 pm was shown as 02:00. This has been changed to a 24 hour format. The date format is now ISO8601 compatible (with a space as separator).

Author: andy23512

CHANGES.txt

@@ -19,6 +19,7 @@
 - Added `FeatureGroupSubGroup` plugin (shtrom #875)
 - Added `duration` option to `TimestampedGeoJson` (andy23512 #894)
 - Added `zoom_control` to `Map` to toggle zoom controls as per enhancement (#795) (okomarov #899)
+- Change default `date_options` in TimestampedGeoJson (andy23512 #914)
 
 API changes
 

folium/plugins/timestamped_geo_json.py

@@ -130,7 +130,7 @@ class TimestampedGeoJson(MacroElement):
 
     def __init__(self, data, transition_time=200, loop=True, auto_play=True,
                  add_last_point=True, period='P1D', min_speed=0.1, max_speed=10,
-                 loop_button=False, date_options='YYYY/MM/DD hh:mm:ss',
+                 loop_button=False, date_options='YYYY-MM-DD HH:mm:ss',
                  time_slider_drag_update=False, duration=None):
         super(TimestampedGeoJson, self).__init__()
         self._name = 'TimestampedGeoJson'