From a9b75cf74c8b2edbdc5153f584f5416e3b17e187 Mon Sep 17 00:00:00 2001
From: boringow <62092582+boringow@users.noreply.github.com>
Date: Fri, 27 Nov 2020 18:43:58 +0100
Subject: [PATCH] Update datetimes.py

I was working today with datetime index, you have the reso (resolutions) defined from year to nanosecond, but then you had the lines 560-570 repeating 'minute' and 'second', and working with millisecond or nanosecond raises a KeyIndex error.
---
 pandas/core/indexes/datetimes.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pandas/core/indexes/datetimes.py b/pandas/core/indexes/datetimes.py
index f6eeb121b1ac0..53d573e7eed71 100644
--- a/pandas/core/indexes/datetimes.py
+++ b/pandas/core/indexes/datetimes.py
@@ -565,10 +565,11 @@ def _parsed_string_to_bounds(self, reso: Resolution, parsed: datetime):
             "hour",
             "minute",
             "second",
-            "minute",
-            "second",
+            "millisecond",
             "microsecond",
+            "nanosecond"
         }
+        
         if reso.attrname not in valid_resos:
             raise KeyError