datetime_diff()

Calculates calendarian difference between two datetime values.

Syntax

datetime_diff(period,datetime_1,datetime_2)

Arguments

Possible values of period:

  • Year
  • Quarter
  • Month
  • Week
  • Day
  • Hour
  • Minute
  • Second
  • Millisecond
  • Microsecond
  • Nanosecond

Returns

An integer, which represents amount of periods in the result of subtraction (datetime_1 - datetime_2).

Examples

print
year = datetime_diff('year',datetime(2017-01-01),datetime(2000-12-31)),
quarter = datetime_diff('quarter',datetime(2017-07-01),datetime(2017-03-30)),
month = datetime_diff('month',datetime(2017-01-01),datetime(2015-12-30)),
week = datetime_diff('week',datetime(2017-10-29 00:00),datetime(2017-09-30 23:59)),
day = datetime_diff('day',datetime(2017-10-29 00:00),datetime(2017-09-30 23:59)),
hour = datetime_diff('hour',datetime(2017-10-31 01:00),datetime(2017-10-30 23:59)),
minute = datetime_diff('minute',datetime(2017-10-30 23:05:01),datetime(2017-10-30 23:00:59)),
second = datetime_diff('second',datetime(2017-10-30 23:00:10.100),datetime(2017-10-30 23:00:00.900)),
millisecond = datetime_diff('millisecond',datetime(2017-10-30 23:00:00.200100),datetime(2017-10-30 23:00:00.100900)),
microsecond = datetime_diff('microsecond',datetime(2017-10-30 23:00:00.1009001),datetime(2017-10-30 23:00:00.1008009)),
nanosecond = datetime_diff('nanosecond',datetime(2017-10-30 23:00:00.0000000),datetime(2017-10-30 23:00:00.0000007))
year quarter month week day hour minute second millisecond microsecond nanosecond
17 2 13 5 29 2 5 10 100 100 -700