自学教程：Python实现自动计算特定格式的时间差

def date_time_str_to_long(input_date_time_string):    '''    标准时间格式转10位时间戳，如：'2020-01-16 08:05:09' 转为 '1579133109'    :param input_date_time_string: string类型，输入的标准时间，如：'2020-01-16 08:05:09'    :return: 10位时间戳，如：'1579133109'    '''    # 字符类型的时间    # input_date_time_string = '2013-03-06 08:05:09'    # input_date_time_string = '2013-03-06 08:05:09'    # 转为时间数组    timeArray = time.strptime(input_date_time_string, "%Y-%m-%d %H:%M:%S")        # 转为时间戳    timeStamp = int(time.mktime(timeArray))    print('标准时间={}，10位时间戳={}'.format(input_date_time_string, timeStamp))  # 1381419600        return timeStamp  def date_time_long_to_str(timeStamp='1579133109', utc_time=0):    '''    将10位时间戳转为标准时间，如：'1579133109' 转为 '2020-01-16 08:05:09'    :param timeStamp: string类型，输入的10位时间戳，如：'1579133109'    :param utc_time: 选择是否输出为UTC时间，设置为1，则输出UTC时间，UTC时间=当前时间-8小时；默认为0，输出为非UTC时间    :return: 标准时间，如：'2020-01-16 08:05:09'    '''    # # 使用datetime        # dateArray = datetime.datetime.fromtimestamp(timeStamp)    # otherStyleTime = dateArray.strftime("%Y-%m-%d %H:%M:%S")    # print(otherStyleTime)  # 2013-10-10 23:40:00        if utc_time == 0:        # 使用time        timeStamp = int(timeStamp)        timeArray = time.localtime(timeStamp)        otherStyleTime = time.strftime("%Y-%m-%d %H:%M:%S", timeArray)        print('input_time={},output_StyleTime={}'.format(timeStamp, otherStyleTime))  # 2013-10-10 23:40:00                return otherStyleTime    else:        # 使用datetime，指定utc时间，比现在时间少8小时        import datetime        dateArray = datetime.datetime.utcfromtimestamp(timeStamp)        otherStyleTime_utc = dateArray.strftime("%Y-%m-%d %H:%M:%S")        print('input_time={},output_StyleTime_utc={}'.format(timeStamp, otherStyleTime_utc))  # 2013-10-10 15:40:00        return otherStyleTime_utc 

def get_now_ISO_time_count(first_time_string,count_int=3600):    #"2030-12-02T17:00:00+08:00"     if first_time_string =='':        print('初始时间不能为空，请确认...')        return -1     first_time_string=str(first_time_string).replace('T',' ').replace('+08:00','')    print('first_time_string={}'.format(first_time_string))     count_time=int(date_time_str_to_long(first_time_string))+int(count_int)    count_str=str(date_time_long_to_str(count_time))    result=count_str[0:10]+'T'+count_str[11:]+'+08:00'    print("get_now_ISO_time_count_08={}".format(result))    return str(result)

if __name__ == '__main__':    print(get_now_ISO_time_count("2030-12-02T17:00:00+08:00", 10800))

def date_time_count(startTime, endTime):    '''    计算两个时间之间的差值，精确到秒    :param startTime:    :param endTime:    :return:    '''    spent_times = int(date_time_str_to_long(endTime)) - int(date_time_str_to_long(startTime))    print('endTime={},startTime={},时间差值={}'.format(endTime, startTime, spent_times))    return spent_times

if __name__ == '__main__':    print(date_time_count("2021-12-06 19:40:00","2021-12-09 14:26:40"))

def date_time_count_ms(startTime, endTime):    '''    计算两个时间之间的差值，可以精确到毫秒    :param startTime:    :param endTime:    :return:    '''    # 输入时间格式    # a = parse('2019-10-30 23:43:10.123')    # b = parse("2019-10-28/09:08:13.56212")    a = parse(str(endTime))    b = parse(str(startTime))        d_count = (a - b).days  # 获取天数的时间差    s_count = (a - b).seconds  # 获取时间差中的秒数，也就是23:43:10到09:08:13，不包括前面的天数和秒后面的小数    total_seconds = (a - b).total_seconds()  # 包括天数，小时，微秒等在内的所有秒数差    microseconds = (a - b).microseconds  # 秒小数点后面的差值    print('endTime={},startTime={},时间差值={}'.format(endTime, startTime, total_seconds))    return total_seconds

if __name__ == '__main__':    print(date_time_count_ms("2021-12-06 19:40:44.123","2021-12-08 14:26:40.567"))