#!/usr/bin/python3
# Time stamp
import time
print (" The current timestamp is :", time.time())
# Interval between function executions
import time
def calculateTime():
item = 1
for i in range(1,100000):
item = item + i
return item
startTime = time.time()
result = calculateTime()
endTime = time.time()
print(' The result of the calculation is ：'+ str(result))
print(' execution time ：'+ str(endTime - startTime))
# Pause time
import time
for i in range(2):
print('one')
print(time.time())
time.sleep(1)
print('two')
print(time.time())
time.sleep(1)
print(' Run complete ')
# Current date and time
import datetime
print(datetime.datetime.now())
# Get the specified time
datetest = datetime.datetime(2019,9,30,22,22,0)
print(datetest)
print(str(datetest.year)+"-"+str(datetest.month)+"-"+str(datetest.day)+" "+str(datetest.hour)+":"+str(datetest.minute)+":"+str(datetest.second))
# Convert timestamps to datetime object
dt1 = datetime.datetime.fromtimestamp(10000)
dt2 = datetime.datetime.fromtimestamp(time.time())
print(dt1)
print(dt2)
# Date conversion
datestr = datetime.datetime.strptime('2019-9-30 22:10:00', '%Y-%m-%d %H:%M:%S')
print(datestr)
now = datetime.datetime.now()
print(now.strftime('%a, %b %d %H:%M'))
# Date increase and decrease
now = datetime.datetime.now()
print(now)
newdate = now + datetime.timedelta(hours=10)
print(newdate)
newdate = now - datetime.timedelta(days=1)
print(newdate)
