Updated exchange._get_funding_fee_dates to use new method funding_fee_cutoff

freqtrade/exchange/binance.py

@@ -1,6 +1,7 @@
 """ Binance exchange subclass """
 import json
 import logging
+from datetime import datetime
 from pathlib import Path
 from typing import Dict, List, Optional, Tuple
 
@@ -227,3 +228,11 @@ class Binance(Exchange):
                             f"{arrow.get(since_ms // 1000).isoformat()}.")
         return await super()._async_get_historic_ohlcv(
             pair=pair, timeframe=timeframe, since_ms=since_ms, is_new_pair=is_new_pair)
+
+    def funding_fee_cutoff(self, d: datetime):
+        '''
+            # TODO-lev: Double check that gateio, ftx, and kraken don't also have this
+            :param d: The open date for a trade
+            :return: The cutoff open time for when a funding fee is charged
+        '''
+        return d.minute > 0 or (d.minute == 0 and d.second > 15)