import datetime from dateutil.relativedelta import relativedelta sub_days = datetime.datetime.today() + relativedelta(days=-6) sub_months = datetime.datetime.today() + relativedelta(months=-6) sub_years = datetime.datetime.today() + relativedelta(years=-6) sub_hours = datetime.datetime.today() ...
datetimeFormat)\-datetime.datetime.strptime(date2, datetimeFormat)print("Difference:", diff)print("Days:", diff.days)print("Microseconds:", diff.microseconds)print("Seconds:", diff.seconds)
(days=days_to_subtract) else: # 在市场交易时间内,使用当前时间 end_date = current_time_ny # 将开始日期设置为结束日期之前 365 天 start_date = end_date - timedelta(days=365) # 获取指定日期范围的每日数据 bars = api.get_bars( symbol, timeframe, start=start_date.isoformat(), end=end_...
delta = pd.TimedeltaIndex(data =['1 days 03:00:00', '2 days 09:05:01.000030'])"""TimedeltaIndex(['1 days 02:00:00', '1 days 06:05:01.000030'], dtype='timedelta64[ns]', freq=None)""" 在Pandas中,可以使用to_datetime方法将对象转换为datetime数据类型或进行任何其他转换。 import p...
#subtract that day's value from the previous day df["Diff_Close"] = df["Close"].diff() #Subtract that day's value from the day's value 2 days ago df["Diff_Close_2Days"] = df["Close"].diff(periods=2) 累计总数 df["Volume_Cumulative"] = df["Volume"].cumsum() 滚动...
Example 1: Get datetime X Days Ago In the first example, I’ll explain how to subtract a specific number of daysfrom our datetime object. For this task, we can use the relativedelta function and the days argument, as you can see here: ...
For instance, you might want to add three days and subtract four hours: Python >>> delta = timedelta(days=+3, hours=-4) >>> now + delta datetime.datetime(2020, 1, 29, 5, 37, 46, 380905) In this example, you add three days and subtract four hours, so the new datetime is ...
#import datetimefrom datetime import datetime, timedelta# get current timenow = datetime.now()print ("Today's date: ", str(now))#add 15 days to current datefuture_date_after_15days = now + timedelta(days = 15)print('Date after 15 days: ', future_date_after_15days)#subtract 2 weeks...
2.示例 # 引入模块 import time, datetime 2.1 str类型的日期转换为时间戳 1 # 字符类型的时间 ...
2)Example 1: Calculate the Difference Between Two Dates in Years, Months & Days Format 3)Example 2: Calculate Your Lifetime 4)Video, Further Resources & Summary Let’s dive into it! Example Data & Add-On Libraries First we have to import date from thedatetime moduleand relativedelta from ...