When I’m not interrupted, I can code effectively for 20 to 30 minutes. However, constant notifications from instant messaging, emails, and meetings disrupt my concentration and make it challenging to finish tasks on time.

I once read an analogy that relates to this situation, stating that just like the value of money remains the same whether you have a $100 bill or in coins, the overall time remains constant even if you have small intervals.

How do I overcome this?