Which numeral system developed by Babylonians gifted us the division of the minute into 60 seconds?

Sexagesimal (base-60) system

The mathematical structure underpinning our modern divisions of time—the specific counts for minutes and seconds—originates with the ancient Sumerians and their successors, the Babylonians. They utilized a sexagesimal, or base-60, numeral system. This system proved exceptionally useful for the complex astronomical calculations they performed while tracking celestial cycles. While other civilizations, like the Egyptians, also contributed significantly to time division (such as dividing the day and night into twelve hours each), it was the Babylonian base-60 structure that explicitly established the ratio of 60 parts in an hour (minutes) and 60 parts in a minute (seconds), a convention that has endured for millennia.