Add ability to adjust time for timezone

[KyleGW]

Currently for me everything shows in UTC time. Add a way to easily adjust the timezone offset so the correct local time is displayed on the overlay.

[tve]

If you're using an xml layout the following hack will shift to localtime:

--- a/gopro_overlay/layout_xml.py
+++ b/gopro_overlay/layout_xml.py
@@ -194,9 +194,9 @@ def date_formatter_from(element, entry):
     truncate = iattrib(element, "truncate", d=0)

     if truncate > 0:
-        return lambda: entry().dt.strftime(format_string)[:-truncate]
+        return lambda: entry().dt.astimezone(tz=None).strftime(format_string)[:-truncate]
     else:
-        return lambda: entry().dt.strftime(format_string)
+        return lambda: entry().dt.astimezone(tz=None).strftime(format_string)

[time4tea]

This looks like a good fix. I'm on vacation atm, away from keyboard, so I'll release it when I'm back next week.
Thanks for the contribution!

[KyleGW]

This change did the trick exactly. Thank you!

[tve]

If you want to make that change you should also tackle:

diff --git a/gopro_overlay/widgets.py b/gopro_overlay/widgets.py
index a94721f..5c0db6c 100644
--- a/gopro_overlay/widgets.py
+++ b/gopro_overlay/widgets.py
@@ -2,6 +2,7 @@ import functools
 import importlib
 import os
 from typing import Callable
+from datetime import timezone

 from PIL import Image, ImageDraw

@@ -113,11 +114,11 @@ class Drawable:


 def time(clock):
-    return lambda: clock().strftime("%H:%M:%S.%f")[:-5]
+    return lambda: clock().astimezone(tz=None).strftime("%H:%M:%S.%f")[:-5]


 def date(clock):
-    return lambda: clock().strftime("%Y/%m/%d")
+    return lambda: clock().astimezone(tz=None).strftime("DD %Y/%m/%d")


 def icon(file, at, transform=lambda x: x):

I have not tested this patch, though.