Updated serialization of datetime to milliseconds rather than seconds. Closes #61.

Author: hcpchris

highcharts_core/js_literal_functions.py

@@ -49,7 +49,7 @@ def serialize_to_js_literal(item, encoding = 'utf-8') -> Optional[str]:
     elif checkers.is_datetime(item):
         if not item.tzinfo:
             item = item.replace(tzinfo = datetime.timezone.utc)
-        return item.timestamp()
+        return item.timestamp()*1000
     elif checkers.is_date(item):
         return f'Date.UTC({item.year}, {item.month - 1}, {item.day})'
     elif checkers.is_time(item):

highcharts_core/options/plot_options/series.py

@@ -797,10 +797,10 @@ def point_start(self, value):
             value = validators.datetime(value)
 
             if hasattr(value, 'timestamp') and value.tzinfo is not None:
-                self._point_start = value.timestamp()
+                self._point_start = value.timestamp()*1000
             elif hasattr(value, 'timestamp'):
                 value = value.replace(tzinfo = datetime.timezone.utc)
-                value = value.timestamp()
+                value = value.timestamp()*1000
             else:
                 raise error
 

highcharts_core/options/plot_options/treegraph.py

@@ -491,10 +491,10 @@ def point_start(self, value):
             value = validators.datetime(value)
 
             if hasattr(value, 'timestamp') and value.tzinfo is not None:
-                self._point_start = value.timestamp()
+                self._point_start = value.timestamp()*1000
             elif hasattr(value, 'timestamp'):
                 value = value.replace(tzinfo = datetime.timezone.utc)
-                value = value.timestamp()
+                value = value.timestamp()*1000
             else:
                 raise error