diff --git a/eodb/events/management/commands/times.py b/eodb/events/management/commands/times.py
new file mode 100644
index 0000000..f3f9d73
--- /dev/null
+++ b/eodb/events/management/commands/times.py
@@ -0,0 +1,52 @@
+import datetime
+import matplotlib
+import matplotlib.dates
+import matplotlib.pyplot as plt
+
+from django.core.management.base import BaseCommand
+from django.utils.dateparse import parse_date
+
+from eodb.events.models import Commit
+
+
+class Command(BaseCommand):
+    def add_arguments(self, parser):
+        parser.add_argument('--username', metavar='USERNAME')
+        parser.add_argument('--datemin', metavar='DATEMIN')
+        parser.add_argument('--datemax', metavar='DATEMAX')
+        parser.add_argument('--committime', action='store_true',
+                            help='use commit datetime instead of author datetime')
+
+    def handle(self, *args, **options):
+        filters = {'author_email__endswith': '@entrouvert.com'}
+
+        title = 'Git activity'
+
+        if options.get('username'):
+            filters['author_email__startswith'] = options['username'] + '@'
+            title += ' for %s' % options['username']
+
+        datetime_var = 'author_datetime'
+        if options.get('committime'):
+            datetime_var = 'commit_datetime'
+        if options.get('datemin'):
+            filters[datetime_var + '__gte'] = parse_date(options['datemin'])
+            title += ' from %s' % options['datemin']
+        if options.get('datemax'):
+            filters[datetime_var + '__lt'] = parse_date(options['datemax'])
+            title += ' until %s' % options['datemax']
+
+        event_dates = []
+        event_times = []
+        for commit in Commit.objects.filter(**filters):
+            graph_date = getattr(commit, datetime_var)
+            event_dates.append(matplotlib.dates.date2num(graph_date.date()))
+            event_times.append(graph_date.hour + graph_date.minute / 60. + graph_date.second / 3600)
+
+        plt.title(title)
+        plt.scatter(event_dates, event_times, alpha=0.3)
+        plt.gca().xaxis.set_major_formatter(matplotlib.dates.DateFormatter('%m/%Y'))
+        plt.gca().set_ylim([0, 24])
+        plt.yticks(range(24))
+        plt.show()
+