python - time @ KwCheng's blog

Reference

https://docs.python.org/2/library/time.html

Convert time structure to user-defined string format

>> t = time.localtime(time.time())

>> s = time.strftime("%y-%m-%d", t)

>> s

'14-10-06'

Modify time structure

>> t = time.localtime(time.time())

>> L = list(t)

>> L[0] = 2016

>> tm = time.struct_time(L)

>> tm

time.struct_time(tm_year=2016, tm_mon=10, tm_mday=6, tm_hour=17, tm_min=50, tm_sec=11, tm_wday=0, tm_yday=279, tm_isdst=0)

We should convert the time structure to list because we can not modify the time structure directly.

Convert time structure to seconds

>> t = time.localtime(time.time())

>> x = time.mktime(t)

>> x

1412589011.0

Get time structure

>> t = time.localtime(time.time())

>> x

time.struct_time(tm_year=2014, tm_mon=10, tm_mday=6, tm_hour=17, tm_min=49, tm_sec=52, tm_wday=0, tm_yday=279, tm_isdst=0)

time structure is like a list , elements of time structure are as follow:

Index	Attribute	Values
0	`tm_year`	(for example, 1993)
1	`tm_mon`	range [1, 12]
2	`tm_mday`	range [1, 31]
3	`tm_hour`	range [0, 23]
4	`tm_min`	range [0, 59]
5	`tm_sec`	range [0, 61]; see (2) in `strftime()`description
6	`tm_wday`	range [0, 6], Monday is 0
7	`tm_yday`	range [1, 366]
8	`tm_isdst`	0, 1 or -1; see below