Comparison time 2 time difference between the date string: the distance from the current time (different time format)
First, the background
may need to compare the time 2 time difference between the date string: the distance from the current time (different time format)
'20200401'
time now
time difference:
0 years 0 months 2 days 17 hours 46 minutes 16 seconds
Second, the analysis
using the Python,
write comparison function: gap_start2end ( '20200401', "the current date string", start_fomart = '% Y% m% d', end_fomart = '% Y-% m-% d% H:% M:% S ')
return time difference represents a combination of: ((0, 0, 2), (17, 46, 16))
Third, encapsulated function method
Time Import
Import datetime
Import Math
# a same time from the date format
def date2obj (date_str = '2015-04-07 19:11:21 ', format = '% Y-% m-% d% H:% M: S% '):
' ''
date string transfer date objects
: param date_str: date string
: param format: date format string
: return: date object
d_obj.year output, 2015
d_obj.month output. 4
d_obj.day output 7
' ''
t_str = DATE_STR
d_obj = datetime.datetime.strptime (t_str, the format)
return d_obj
#. 1, sec interval S
def time_seconds_span (start_date1, end_date2, fomart1 = '% Y-% m-% d% H:% M: S% ', fomart2 ='% Y-M-% D%% H:% M:% S '):
d1_obj = date2obj (START_DATE1, fomart1)
d2_obj = date2obj (END_DATE2,fomart2)
return (d2_obj - d1_obj).seconds
# 2, min minute intervals
def time_minutes_span (start_date1, end_date2, fomart1 = '% Y-% m-% d% H:% M:% S', fomart2 = '% Y-% m-% d% H:% M:% S '):
d1_obj = date2obj (START_DATE1, fomart1)
d2_obj = date2obj (END_DATE2, fomart2)
seconds_span = (d2_obj - d1_obj) .seconds
# rounded down
mins_span = Math.floor (seconds_span / 60)
return mins_span
# 3, h-hour interval
def time_hours_span (start_date1, end_date2, fomart1 = '% Y-% m-% d% H:% M:% S', fomart2 = '% Y-% m-% d% H:% M :% S '):
d1_obj = date2obj(start_date1, fomart1)
d2_obj = date2obj(end_date2, fomart2)
seconds_span = (d2_obj - d1_obj).seconds
# rounded down
hours_span = Math.floor (seconds_span / (60 * 60))
return hours_span
#. 4, D days interval. With or without an h, min, s, calculation, ignores h, min, s, counting only the number of days, months, and years.
date_days_span DEF (START_DATE1, END_DATE2, fomart1 = 'M-%%% Y-D', fomart2 = 'M-%%% Y-D'):
d1_obj = date2obj (START_DATE1, fomart1)
d2_obj = date2obj (END_DATE2, fomart2)
# just take a few days difference. Equivalent rounded down.
= days_span (d2_obj - d1_obj) .days
return days_span
#. 5, May month The number of time intervals. With or without an h, min, s, calculation, ignores h, min, s, counting only the number of days, months, and years.
date_months_span DEF (START_DATE1, END_DATE2, fomart1 = 'M-%%% Y-D', fomart2 = 'M-%%% Y-D'):
d1_obj = date2obj (START_DATE1, fomart1)
d2_obj = date2obj (END_DATE2, fomart2)
# rounded down. Just take a few days.
= days_span (d2_obj - d1_obj) .days
months_span = Math.floor (days_span / 30)
return months_span
: param start_fomart: reading start time date string format
#. 6, the number of years year interval. With or without an h, min, s, calculation, ignores h, min, s, counting only the number of days, months, and years.
date_years_span DEF (START_DATE1, END_DATE2, fomart1 = 'M-%%% Y-D', fomart2 = 'M-%%% Y-D'):
d1_obj = date2obj (START_DATE1, fomart1)
d2_obj = date2obj (END_DATE2, fomart2)
# rounded down. Just take a few days.
= days_span (d2_obj - d1_obj) .days
years_span = Math.floor (days_span / (30 * 12 is))
return years_span
DEF gap_start2end (start_str, end_str, start_fomart = '% Y-M-% D%% H:% M:% S ', end_fomart ='% Y-M-% D%% H:% M:% S '):
' ''
time comparison of two time difference
: param start_str: start date time string
: param end_str: time off date string
# exemplified:
'2009-02 -28 00:00:04 '
: param end_fomart: cutoff time to read the date format string
: return: the number of times the difference array composition ((Y, m, D), (H, min, sec))
y = years_gap
'2010-03-01 01:02:03'
output ((1, 0, 6), (1, 1, 59))
meaning: 1 in the time interval 0 months 6 days, 1 hour, 1 minute 59 seconds
# time pushback Description:
# sum_days = Y * 30 * 12 is + m * 30 + D
# sum_seconds = sum_days * 24 * 60 * 60 + H * 60 * 60 + min * 60 + sec
'' '
difference number # of
years_gap = date_years_span (start_str, end_str, start_fomart, end_fomart )
# of months difference
months_gap = date_months_span (start_str, end_str, start_fomart, end_fomart )
# difference number of days
days_gap = date_days_span (start_str, end_str, start_fomart, end_fomart )
# removed combination date indicates the number
difference number # hours
12 is months_gap% = m
D = 30% days_gap
output Examples Description:
hours_gap = time_hours_span (start_str, end_str, start_fomart, end_fomart)
difference number # minutes
mins_gap = time_minutes_span (start_str, end_str, start_fomart, end_fomart)
# seconds difference
seconds_gap = time_seconds_span (start_str, end_str, start_fomart, end_fomart)
# indicates a combination of the time taken number
H = hours_gap
min = 60% mins_gap
sec seconds_gap = 60%
return ((Y, m, D), (H, min, sec))
DEF time2date (timeint = 1565673941, the format = "% D% Y-M-% H%:% M:% S "):
'' '
timestamp date string into the unit s, s
: param timeint: timestamp
: return: date string
(1565673941,"% Y-M-% D% ") output 2019-08-13
(1565673941, "% Y-% m- % d% H:% M:% S") output 13:25:41 2019-08-13
(1565673941, "the Y% m% D%") output 20,190,813
'' '
= time.localtime LOCAL_TIME (timeint)
data_head the time.strftime = (the format, LOCAL_TIME)
return data_head
IF the __name__ == '__main__':
# # a same time from the date format.
START_DATE = # '2009-02-28 00:00:04'
# END_DATE = '2010-03-01 01:02:03'
# Cha = gap_start2end (START_DATE, END_DATE)
# Print (Cha)
# Second, a different date format the time distance. The time now distance
START_DATE = '20,200,401'
END_DATE = time2date (the time.time ())
cha_now = gap_start2end (START_DATE, END_DATE, start_fomart = '% m% D% the Y', end_fomart = '