From 9a9a1be165f7bc4dd69bfa4798e12dc66d819f64 Mon Sep 17 00:00:00 2001
From: Ferdia McKeogh <fm208@st-andrews.ac.uk>
Date: Sat, 24 Dec 2022 15:19:36 +0000
Subject: [PATCH] Handle "Z" as EXIF offset time (#881)

---
 osxphotos/exif_datetime_updater.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/osxphotos/exif_datetime_updater.py b/osxphotos/exif_datetime_updater.py
index d00ee626..1482a14f 100644
--- a/osxphotos/exif_datetime_updater.py
+++ b/osxphotos/exif_datetime_updater.py
@@ -41,6 +41,11 @@ ExifDateTime = namedtuple(
 
 def exif_offset_to_seconds(offset: str) -> int:
     """Convert timezone offset from UTC in exiftool format (+/-hh:mm) to seconds"""
+
+    # Z (for Zulu time) corresponds to a zero UTC offset
+    if offset == "Z":
+        return 0
+
     sign = 1 if offset[0] == "+" else -1
     hours, minutes = offset[1:].split(":")
     return sign * (int(hours) * 3600 + int(minutes) * 60)