change xaxis date format

apps/utils.py

@@ -558,7 +558,7 @@ def date_format_hours(x, pos=None):
     """See date_format_days function
     Only the first tick contains the full date.
     """
-    fmt = "%D %H:%M:%S" if pos == 1 else "%H:%M:%S"
+    fmt = "%Y-%m-%d %H:%M:%S" if pos == 1 else "%H:%M:%S"
     return datetime.utcfromtimestamp(x).strftime(fmt)
 
 
@@ -570,7 +570,7 @@ def date_format_days(x, pos=None):
     :returns: a string containing the corresponding tick label
 
     """
-    return datetime.utcfromtimestamp(x).strftime("%D %H:%M:%S")
+    return datetime.utcfromtimestamp(x).strftime("%Y-%m-%d %H:%M:%S")
 
 
 def get_units(params, plot_channel):
@@ -676,9 +676,12 @@ def static_plots(params, st):
         ax.set_xlim(left, right)
 
         if not params["spectrum"]:
-            ax.xaxis.set_major_formatter(FuncFormatter(date_format_hours))
-            if params["end"].day - params["start"].day >= 1:
+            day1 = datetime.utcfromtimestamp(left).day
+            day2 = datetime.utcfromtimestamp(right).day
+            if day1 != day2:
                 ax.xaxis.set_major_formatter(FuncFormatter(date_format_days))
+            else:
+                ax.xaxis.set_major_formatter(FuncFormatter(date_format_hours))
 
         if params["showtitle"]:
             text = (