time模块

import time

print(time.time())  # 1542203668.0212119

import time

s = time.strftime("%Y-%m-%d %H:%M:%S")
print(s)  # 2018-11-14 22:01:40

import time
# 中文
import locale
locale.setlocale(locale.LC_CTYPE, "chinese")

s = time.strftime("%Y年%m月%d日")
print(s)  # 2018年11月18日

import time

t = time.localtime(1888888888)
print(t)  # time.struct_time(tm_year=2029, tm_mon=11, tm_mday=9, tm_hour=11, tm_min=21, tm_sec=28, tm_wday=4, tm_yday=313, tm_isdst=0)

s = time.strftime("%Y-%m-%d %H:%M:%S", t)
print(s)  # 2029-11-09 11:21:28

import time

t = time.gmtime(1888888888)
print(t)  # time.struct_time(tm_year=2029, tm_mon=11, tm_mday=9, tm_hour=3, tm_min=21, tm_sec=28, tm_wday=4, tm_yday=313, tm_isdst=0)

s = time.strftime("%Y-%m-%d %H:%M:%S", t)
print(s)  # 2029-11-09 03:21:28

import time

t = time.localtime(1888888888)
print(t)  # time.struct_time(tm_year=2029, tm_mon=11, tm_mday=9, tm_hour=11, tm_min=21, tm_sec=28, tm_wday=4, tm_yday=313, tm_isdst=0)

s = time.strftime("%Y-%m-%d %H:%M:%S", t)
print(s)  # 2029-11-09 11:21:28

import time


s = "2029-11-09 11:21:28"

t = time.strptime(s, "%Y-%m-%d %H:%M:%S")
print(t)  # time.struct_time(tm_year=2029, tm_mon=11, tm_mday=9, tm_hour=11, tm_min=21, tm_sec=28, tm_wday=4, tm_yday=313, tm_isdst=-1)

tt = time.mktime(t)
print(tt)  # 1888888888.0

import time

begin = "2018-11-14 16:30:00"
end = "2018-11-14 18:00:00"

begin_struct_time = time.strptime(begin, "%Y-%m-%d %H:%M:%S")
end_struct_time = time.strptime(end, "%Y-%m-%d %H:%M:%S")

begin_second = time.mktime(begin_struct_time)
end_second = time.mktime(end_struct_time)

diff_time_sec = end_second - begin_second

diff_hour, diff_min_1 = divmod(diff_time_sec, 3600)
diff_min, diff_sec = divmod(diff_min_1, 60)

print("时间差是 %s小%s分钟%s秒" % (int(diff_hour), int(diff_min), int(diff_sec)))

结果：
时间差是 1小30分钟0秒

import time

begin = "2018-11-14 16:30:00"
end = "2018-11-14 18:00:00"

begin_struct_time = time.strptime(begin, "%Y-%m-%d %H:%M:%S")
end_struct_time = time.strptime(end, "%Y-%m-%d %H:%M:%S")

begin_second = time.mktime(begin_struct_time)
end_second = time.mktime(end_struct_time)

diff_time_sec = abs(begin_second - end_second)  # 秒级时间差

# 转化成结构化时间
t = time.gmtime(diff_time_sec)  # 用格林尼治时间，否则会有时间差
# time.struct_time(tm_year=1970, tm_mon=1, tm_mday=1, tm_hour=1, tm_min=30, tm_sec=0, tm_wday=3, tm_yday=1, tm_isdst=0)

print("时间差是%s年 %s月 %s天 %s小时 %s分钟" % (t.tm_year - 1970, t.tm_mon - 1, t.tm_mday - 1, t.tm_hour, t.tm_min))


结果：
时间差是0年 0月 0天 1小时 30分钟