delivery time accepting negative values

Describe the bug
the average time for food delivery is accepting negative values which it shouldn't at all

To Reproduce
Steps to reproduce the behavior:

Go to 'vendors'
Click on 'add restaurant'
Scroll down to 'registration form'>> Delivery time
See error
Expected behavior
input should be +ve and with a modulus of 60

Screenshots
image

Desktop (please complete the following information):

OS: Windows
Browser Chrome
Version 122.0.6261.95 (Official Build) (64-bit)

Start at Vendors, open Add restaurant, and locate the registration form's Delivery time field. Reproduce the issue in Chrome, then inspect the field's validation and confirm the form rejects negative values and follows the stated modulus-of-60 requirement.

Written by the indexing model from the issue text.