Burning the Midnight Oil?

My rule of thumb: work until you feel satisfied.

• If you feel excited about a problem, keep working on it.
• If you feel nervous about falling behind, keep working on it (as long as you are making progress)

Alex made a very relevant course about this just now! Maximize Your Productivity As A Software Engineer

Momentum is incredibly valuable, so if you have it, preserve it. If you're behind on a task but are making good progress on it at 6PM or something (like due to a focus block), then keep the train going until you've caught up or are ahead.

What I will recommend against though is literally burning the midnight oil as good sleep is critical for productivity. I would rather work through a weekend than work until 2AM or something.

within a work-bloc, having longer time spent at your desk - so sitting interrupted at your desk for over an hour, for example. If you're following the health gurus, you should be standing up often, and the Pomodoro technique is classically 25-minute focus blocks, but I don't know how practical this is

I usually only use this method when there's a task that I keep procrastinating on. If you are completely focused and locked in to what you are doing, I think it's better to ride that focus as much as you can until you finish the task. I mainly use the technique to force myself to get started on something because I always have a realization that a lot of the anxiety I have from starting a task is because I artificially inflate how difficult a task will be in my head (or I artificially inflate how boring the task will be). When you can take the feelings out of a task, it's a lot easier to complete.

cutting out gym time to get more work done - for me, exercise is generally 1 - 1.5 hours of time which I do 3 or 4 times a week, so I can get more keyboard time in if I cut it.

working later into the night and either cutting into sleep time or just waking up later the next day

I would be careful with these two, because once you start missing a workout or change your sleep schedule, you can continue to let them slip, and then you'll have another issue on your hand.

In my case, I'm onboarding and think I'm behind on my first ticket, hence the motivation for my question.

Can you reflect on why you are or feel like you are behind on your first ticket? I will say that sometimes it is worth it to make a sacrifice, especially if you are onboarding with a new team or company because that first impression is very important. Is it because of procrastination, mismanaged time, or the ticket wasn't scoped well. If the ticket wasn't scoped well, I would communicate with the team what your initial expectations for the ticket were, and how the scope creeped up, so you need to take more time to solve the ticket.