The time resource is not triggering builds on schedule

Hello,
I want to trigger builds each day once on particular hour, so I’m using the “time resource”. Unfortunately once I setup it - nothing happens, the builds aren’t started. Here’s a snippet from my pipeline:

resources:
  - name: 24h
     type: time
     source:
         start: 02:37 PM
         stop: 02:38 PM
jobs:
  - name: check_enabled_services
    serial: true
    plan:
       -  get: 24h
           trigger: true

I’m using UTC time zone as this is the default time of the concourse worker.
I will appreciate anyone’s help