Number of days since Y2K day --- string to date conversion

Script

#!/usr/local/bin/python3.4
from datetime import datetime

text = '1999-12-31'
y = datetime.strptime(text, '%Y-%m-%d')
z = datetime.now()

difference = z - y

print('Number of days since Y2K day:', difference)


Execution

Number of days since Y2K day: 5926 days, 23:15:48.791738

(This output was obtained when I ran this script at 11:15 p.m. PST on 22nd March 2016)