Most Convenient Lahore to Sahiwal Train Timing for Morning Travelers?

Hey everyone,
I’m planning to travel from Lahore to Sahiwal early in the morning next week and need to find the most convenient Lahore to Sahiwal train timing for a smooth journey. I’ve seen a few different schedules online and am unsure which one to rely on. Can anyone suggest the best source for accurate and updated train timings? Also, if you have any recommendations on the best morning trains for this route in terms of punctuality and comfort, I’d love to hear them. Thanks for your help!