diff --git a/taptap/tap2influxdb.py b/taptap/tap2influxdb.py
index 0904dc0..9160411 100644
--- a/taptap/tap2influxdb.py
+++ b/taptap/tap2influxdb.py
@@ -73,6 +73,6 @@ if __name__ == "__main__":
             log.error(f"split args with start time failed ,args={d}", exc_info=True)
             raise Exception(f"split args with start time failed ,args={d}")
     else:
-        d = datetime.datetime.strptime((datetime.datetime.now() - datetime.timedelta(days=1)), "%Y-%m-%d")
+        d = (datetime.date.today() - datetime.timedelta(days=1)).strftime('%Y-%m-%d')
     tt = TAP2Influx(d)
     tt.run()