what is the unit of python time.time code example

Example 1: time.time()

from time import time

# 1 January 1970 is the standard date that all computers measure time against 
# Prints the number of seconds that have passed since 1 January 1970
print(time())

Example 2: python time seconds

import time

# seconds passed since epoch
seconds = 1545925769.9618232
local_time = time.ctime(seconds)
print("Local time:", local_time)