diff --git a/freqtrade/optimize/backtesting.py b/freqtrade/optimize/backtesting.py
index 8e244bdda..a78c9e197 100644
--- a/freqtrade/optimize/backtesting.py
+++ b/freqtrade/optimize/backtesting.py
@@ -212,7 +212,10 @@ def start(args):
     preprocessed = optimize.tickerdata_to_dataframe(data)
     # Print timeframe
     min_date, max_date = get_timeframe(preprocessed)
-    logger.info('Measuring data from %s up to %s ...', min_date.isoformat(), max_date.isoformat())
+    logger.info('Measuring data from %s up to %s (%s days)..',
+                min_date.isoformat(),
+                max_date.isoformat(),
+                (max_date-min_date).days)
     # Execute backtest and print results
     sell_profit_only = config.get('experimental', {}).get('sell_profit_only', False)
     use_sell_signal = config.get('experimental', {}).get('use_sell_signal', False)
diff --git a/freqtrade/tests/optimize/test_backtesting.py b/freqtrade/tests/optimize/test_backtesting.py
index f88cdd9b9..f5db4d037 100644
--- a/freqtrade/tests/optimize/test_backtesting.py
+++ b/freqtrade/tests/optimize/test_backtesting.py
@@ -193,7 +193,8 @@ def test_backtest_start(default_conf, mocker, caplog):
     # check the logs, that will contain the backtest result
     exists = ['Using max_open_trades: 1 ...',
               'Using stake_amount: 0.001 ...',
-              'Measuring data from 2017-11-14T21:17:00+00:00 up to 2017-11-14T22:59:00+00:00 ...']
+              'Measuring data from 2017-11-14T21:17:00+00:00 '
+              'up to 2017-11-14T22:59:00+00:00 (0 days)..']
     for line in exists:
         assert ('freqtrade.optimize.backtesting',
                 logging.INFO,