what's the fastest turnaround time to make a passport for my baby?

Most of my friends chose to apply through the online APPLES (https://apples.ica.gov.sg/apples/index.xhtml) system. The key is getting the photo right for fast processing I think. The entire process is quite fuss free and straightforward. Some tips my friends share for the photo taking part (as most took their own photo) was to prepare a white sheet to place behind baby's head and do the photo taking in a bright setting. One of them found the burst shots function very useful for taking multiple photos and hoping that one would meet the requirements. Hope these help!