Same Day handling time allows you to show the customer a faster delivery promise that reflects your ability to pick, pack, and ship a product the same day of receiving an order. This only applies to orders received before the cut-off time, which is defaulted to 2 p.m. (time zone of your Default shipping address). You can change this cut-off time in your General Shipping Settings (Settings > Shipping Settings > General Shipping Settings > Click ‘Edit’ on Cut Off Time section.)
The feature is only available to sellers that meet high delivery performance standards.
Requirements for Same-Day handling time:
The default order cut-off times for your Standard and Expedited Shipping (when Same Day Handling Time is enabled) orders is set to 2:00 p.m. (time zone of your Default shipping address). You can change this cut-off time in your General Shipping Settings (Settings > Shipping Settings > General Shipping Settings > Click ‘Edit’ on Cut Off Time section).