time module
1: Overview
Classification of Time Representation
timestamp
Formatted time string
Structured time
Timestamp: Timestamp represents the offset from 0:00 on January 1, 1970 to the current second, the data type is floating point, mainly used to let the computer to see the
Formatted time strings: e.g. 2019-01-26, etc. , the data type is a string, which is mainly human-readable
Structured Time: Structured time groups time, such as year, month, day, hour, minute, second, etc. The data type is a meta-anchor, which mainly does time conversions
Importing related libraries
import time
1. Time stamps
1.1 ()
() can be obtained as a timestamp . That is, the offset from 0:0:0 on January 1, 1970 to the present time s
t1 = ()
print('t1：', t1)
1.2 Time stamp to string
Convert timestamps toA fixed format strings, you can use the () method. (but less commonly used)
t = (()) print(t)
2. Structuring time
Using structured time is easier for us
2.1 Local time
Local time is related to the time zone.
t2 = (())
print("t2:", t2)
2.2 Greenwich Mean Time (Zero Time Zone)
Greenwich Mean Time (0 time zone) is exactly 8 hours behind Beijing time (global benchmark, use this time to eliminate the effect of writing code in different places)
t3 = (())
print("t3：", t3)
2.3 Structured time to string
The string form is the one generally acceptable to humans
t4 = ("%Y/%m/%d %H:%M:%S", t2)
print(t4)
print(type(t4))
2.4 String to structured time
Reverse of the above
t5 = ('2022/06/22 20:30:35', "%Y/%m/%d %H:%M:%S")
print(t5)
2.5 Attributes of structured data
print("Year:", t2.tm_year)
print("Moon:", t2.tm_mon)
print("Day:", t2.tm_mday)
print("Time.", t2.tm_hour)
print("Points.", t2.tm_min)
print("Seconds.", t2.tm_sec)
print("Days elapsed this week:", t2.tm_wday)
print("Number of days elapsed this year:", t2.tm_yday)
print("Is it daylight saving time?", t2.tm_isdst)
2.6 Structured time to timestamp
t7 = (t2) print(t7)
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