"No workouts today" on home screen on webui

[manc74]

Describe the bug
When loading the webui, there is normally a snapshot of the day's workouts along with a button "sync todays workouts". The last few days i just see "No workouts today." and have to click on the sync tab and tick today's workouts manually then the sync button.

To Reproduce
Steps to reproduce the behavior:

1. Go to the webui after finishing a Peloton workout
2. See "No workouts today" on home screen
3. Click "sync" tab, and see todays workouts that can be manually synced.

Expected behavior
Seeing a list of todays workouts on the home page and the button to sync them

Logs

2023-03-29 16:56:35.149 +01:00 [INF] Found 1 workouts remaining after filtering ExcludedWorkoutTypes.
2023-03-29 16:56:35.255 +01:00 [INF] Converting workouts...
2023-03-29 16:56:35.724 +01:00 [INF] Uploading workouts to Garmin...
2023-03-29 16:56:40.399 +01:00 [INF] Uploading to Garmin: /app/working/upload/xxxxxxxxxxxx.fit
2023-03-29 16:56:40.827 +01:00 [INF] Rate limiting, upload will continue after 4 seconds...
2023-03-29 16:56:45.661 +01:00 [INF] Upload complete.

Installation (please complete the following information):

• OS: Linux
• Method: Docker
• Version: 3.4.1
  OS:
  Unix
  OS Version:
  Unix 5.15.0.67
  RunTime Version:
  6.0.14

[philosowaffle]

I've suspected for a bit now that this page has an issue with TimeZones, especially when trying to figure out the start of today.

1. What timezone are you in?
2. Since this issue started happening, was there a change in when you were taking the classes, perhaps significantly earlier or later in the day than normal?

[manc74]

I'm in the UK. The server was set to UTC timezone but I also had a suspicion that it may have been related to timezones so I changed the box to Europe/London which is currently BST. Doesn't seem to have changed anything though.

It doesn't seem to matter what time of the day the class is taken.

[manc74]

Just to update this with a further finding - if I wait an hour or more after completing the workout, it shows up - so it seems to be definitely related to the change from GMT to BST with occurred at the end of March.

[philosowaffle]

Closing in favor of #631