diff --git a/voussoirkit/operatornotify.py b/voussoirkit/operatornotify.py
index d085987..285759e 100644
--- a/voussoirkit/operatornotify.py
+++ b/voussoirkit/operatornotify.py
@@ -249,7 +249,14 @@ def main_log_context(subject, level, **kwargs):
     log = vlogging.getLogger()
     handler = LogHandler(subject, **kwargs)
     handler.setLevel(level)
-    handler.setFormatter(vlogging.Formatter('{levelname}:{name}:{message}', style='{'))
+    datefmt = '%Y-%m-%dT%H:%M:%S'
+    formatter = vlogging.Formatter(
+        '[{asctime}.{msecs:03.0f}] {levelname}:{name}:{message}',
+        style='{',
+        datefmt=datefmt,
+    )
+    formatter.default_msec_format = '%s.%03d'
+    handler.setFormatter(formatter)
     context = LogHandlerContext(log, handler)
     return context
 
diff --git a/voussoirkit/vlogging.py b/voussoirkit/vlogging.py
index e46bdb5..26cf1ed 100644
--- a/voussoirkit/vlogging.py
+++ b/voussoirkit/vlogging.py
@@ -54,12 +54,15 @@ def add_loud(log):
 
 def add_root_handler(level):
     handler = StreamHandler()
+    datefmt = '%Y-%m-%dT%H:%M:%S'
     if level <= LOUD:
-        handler.setFormatter(Formatter('{levelname}:{name}.{funcName}.{lineno}:{message}', style='{'))
+        formatter = Formatter('[{asctime}.{msecs:03.0f}] {levelname}:{name}.{funcName}.{lineno}:{message}', style='{', datefmt=datefmt)
     elif level <= DEBUG:
-        handler.setFormatter(Formatter('{levelname}:{name}.{funcName}:{message}', style='{'))
+        formatter = Formatter('[{asctime}.{msecs:03.0f}] {levelname}:{name}.{funcName}:{message}', style='{', datefmt=datefmt)
     else:
-        handler.setFormatter(Formatter('{levelname}:{name}:{message}', style='{'))
+        formatter = Formatter('[{asctime}.{msecs:03.0f}] {levelname}:{name}:{message}', style='{', datefmt=datefmt)
+    formatter.default_msec_format = '%s.%03d'
+    handler.setFormatter(formatter)
     handler.setLevel(level)
     root.addHandler(handler)
     return handler