Example 1: Python Add Months to Date main.py from datetime import datetime from dateutil.relativedelta import relativedelta myDateString = "2022-06-01" myDate = datetime.strptime(myDateString, "%Y-%m-%d") addMonthNumber = 2; newDate = myDate + relativedelta(months=addMonthNumber) print("...
不使用 try/catch,而是使用 calendar.monthrange 来自stdlib 中的 calendar 模块: import datetime import calendar def add_one_month(orig_date): # advance year and month by one month new_year = orig_date.year new_month = orig_date.month + 1 # note: in datetime.date, months go from 1 to 1...
一、提取日期(year,month,day,hour,minute,second函数) 案例1:提取日期中的年,月,日,时,分,秒。 二、组合日期函数(Date函数,Time函数) 案例1:组合日期 案例2:使用date函数与文本提取函数生成完整日期 总结: Date函数作用为将年月日,合并在一起,成为一个完整的日期格式。 Time函数作用为将时分秒,合并在一起,...
importpendulum#获取当前时间now =pendulum.now()print(now)#带有时区信息#创建特定日期时间specific_date = pendulum.datetime(2024, 8, 23, 10, 15)print(specific_date)#时间差的表示diff =specific_date.diff(now)print(diff.in_days())#输出差异的天数#格式化日期formatted =now.to_formatted_date_string()...
toDateTime() toDate() 四、时间运算函数 1.interval 2.add增加时间 3.subtract减去时间 4.时间差值 dateDiff() 点关注,防走丢,如有纰漏之处,请留言指教,非常感谢 参阅 前言 Clickhouse是一个面向联机分析处理(OLAP)的开源的面向列式存储的DBMS,简称CK, 与Hadoop, Spark相比,ClickHouse很轻量级,由俄罗斯第一大...
date_string="2023-11-01"# 将时间字符串解析为日期对象 date_object=datetime.strptime(date_string,"%Y-%m-%d")# 加几天 days_to_add=7new_date_after_addition=date_object+timedelta(days=days_to_add)# 减几天 days_to_subtract=3new_date_after_subtraction=date_object-timedelta(days=days_to_subtr...
Therelativedeltaclass is very convenient because a month can have different days. If you use thetimedeltaclass, you need to calculate the different days each month has and sum them yourself. 4. Adding years to a date in Python To add years to a date in Python, you can use thetimedeltaor...
start = date(2019,1,1) # 设置个月份递增的函数 def add_month(d,md): y = md // 12 m = d.month + md % 12 if m !=12: y += m // 12 m = m % 12 return date(d.year + y, m,d.day) for i in books.index: books["ID"].at[i]=i+1 ...
defadd_one_month(t):"""Return a `datetime.date` or `datetime.datetime` (as given) that isone month earlier.Note that the resultant day of the month might change if the followingmonth has fewer days:>>> add_one_month(datetime.date(2010, 1, 31))datetime.date(2010, 2, 28)"""import...
DATEVALUE(date_text) DATEVALUE 函数将存储为文本的日期转换为 Excel 识别为日期的序列号,里面只有一个参数,也就是文本格式的日期,例:把文本格式的单元格转化为日期格式,然后可以把44954变成日期显示 EOMONTH(start_date, months) 返回某个月份最后一天的时间序列号,EO是英文end of的首字母缩写,end of month也就是...