diff --git a/ethfinex/public_client.py b/ethfinex/public_client.py
index 1cedaf0..b27a76c 100644
--- a/ethfinex/public_client.py
+++ b/ethfinex/public_client.py
@@ -51,6 +51,8 @@ def get_trades(self, pair, limit=None, start=None, end=None, sort=None):
         """Get all the pertinent details of the trade, such as price, size and
         time.
 
+        **Note**: `start` and `end` are in MILISECONDS. Each need 13 digits.
+
         Args:
             pair (str): Name of the pair
             limit (Optional[int]): Number of records
@@ -168,6 +170,8 @@ def get_candles(self, symbol, time_frame, section,
                     limit=None, start=None, end=None, sort=None):
         """Access charting candle info.
 
+        **Note**: `start` and `end` are in MILISECONDS. Each need 13 digits.
+
         Args:
             symbol (str): Name of the symbol
             time_frame (str): Available values: '1m', '5m', '15m', '30m', '1h',