# your code goes here
import time
from datetime import datetime

now = datetime(2019, 1, 1)

dateNow = '' + str(now.day - 1) + '/' + str(now.month) + '/' \
    + str(now.year) + ''

start = '' + dateNow + ' 00:00'
end = '' + dateNow + ' 23:59'

print(start)

startTimestamp = int(time.mktime(datetime.strptime(start,
                     '%d/%m/%Y %H:%M').timetuple()))