时间戳(timestamp)的方式:通常来说,时间戳表示的是从1970年1月1日00:00:00开始按秒计算的偏移量。我们运行“type(time.time())”,返回的是float类型。 元组(struct_time)方式:struct_time元组共有9个元素,返回struct_time的函数主要有gmtime(),localtime(),strptime()。下面列出这种方式元组中的几个元素: 索...
由于工作关系,常常遇到时间戳转化的问题。转换方法用到python的datetime库里的fromtimestamp方法。第一步:导入datetime库 import datetime 第二步:使用fromtimestamp方法进行转换 x = 1511544070 result = datetime.datetim...
time.strftime(format[, t]):把一个代表时间的元组或者struct_time(如由time.localtime()和time.gmtime()返回)转化为格式化的时间字符串。如果t未指定,将传入time.localtime()。 举例:time.strftime("%Y-%m-%d %X", time.localtime()) #输出'2017-10-01 12:14:23' time.strptime(string[, format]):把...
datetime.fromtimestamp(10000) dt2 = datetime.datetime.fromtimestamp(time.time()) print(dt1) print(dt2) #日期转换 datestr = datetime.datetime.strptime('2019-9-30 22:10:00', '%Y-%m-%d %H:%M:%S') print(datestr) now = datetime.datetime.now() print(now.strftime('%a, %b %d %H:%M'...
UTC(Coordinated Universal Time,世界协调时)亦即格林威治天文时间,世界标准时间。在中国为UTC+8。DST(Daylight Saving Time)即夏令时。 时间戳(timestamp)的方式:通常来说,时间戳表示的是从1970年1月1日00:00:00开始按秒计算的偏移量。我们运行“type(time.time())”,返回的是float类型。
%y: year without century as a zero-padded decimal number — such as 00, 01, 02, etc. A more detailed table with format code can be found in the Python docs. Example: Format date and time in a datetime object Just like in the previous examples, we can pass an argument of the format...
%y Year without century as a decimal number [00,99]. %Y Year with century as a decimal number. %z Time zone offset indicating a positive or negative time difference from UTC/GMT of the form +HHMM or -HHMM, where H represents decimal hour digits and M represents decimal minute digits [...
DataFrame.asof(where[, subset]) #The last row without any NaN is taken (or the last row without DataFrame.shift([periods, freq, axis]) #Shift index by desired number of periods with an optional time freq DataFrame.first_valid_index() #Return label for first non-NA/null value ...
double_precision : int, default 10 The number of decimal places to use when encoding floating point values. force_ascii : bool, default True Force encoded string to be ASCII. date_unit : str, default 'ms' (milliseconds) The time unit to encode to, governs timestamp and ISO8601 precisi...
%YYear with century as a decimal number. %ZTime zone name (no characters if no time zone exists). Example 6:Format time similar toctime(), usingstrftime() import time def format_time(format, t): format_t = time.strftime(format, t) ...