Python代码

import time 
print time.time() #获取当前时间 
print time.strftime("%Y-%m-%d %X ") #获取当前时间（按照指定格式）

用time.localtime()方法，作用是格式化时间戳为本地的时间：

Python代码

import time 
print time.localtime(time.time())

输出结果：time.struct_time(tm_year=2015, tm_mon=11, tm_mday=513, tm_hour=15, tm_min=48, tm_sec=28, tm_wday=3, tm_yday=309, tm_isdst=0)

现在看起来更有希望格式成我们想要的时间了。
time.strftime('%Y-%m-%d',time.localtime(time.time()))

Python代码

import time 
print time.strftime('%Y-%m-%d',time.localtime(time.time()))

最后用time.strftime()方法，把刚才的一大串信息格式化成我们想要的东西，现在的结果是：2015-11-05

ime.strftime里面有很多参数，可以让你能够更随意的输出自己想要的东西：
下面是time.strftime的参数：

strftime(format[, tuple]) -> string
将指定的struct_time(默认为当前时间)，根据指定的格式化字符串输出

1,python中时间日期格式化符号：

%y 两位数的年份表示（00-99）
%Y 四位数的年份表示（000-9999）
%m 月份（01-12）
%d 月内中的一天（0-31）
%H 24小时制小时数（0-23）
%I 12小时制小时数（01-12）
%M 分钟数（00=59）
%S 秒（00-59）
%a 本地简化星期名称
%A 本地完整星期名称
%b 本地简化的月份名称
%B 本地完整的月份名称
%c 本地相应的日期表示和时间表示
%j 年内的一天（001-366）
%p 本地A.M.或P.M.的等价符
%U 一年中的星期数（00-53）星期天为星期的开始
%w 星期（0-6），星期天为星期的开始
%W 一年中的星期数（00-53）星期一为星期的开始
%x 本地相应的日期表示
%X 本地相应的时间表示
%Z 当前时区的名称
%% %号本身

2. 计算时间差：

Python代码

#coding=utf-8 
import time 
import datetime 
d1 = datetime.datetime(2013,6,9) 
d2 = datetime.datetime(2015, 11,5) 
 
print (d1 - d2).days

输出结果是：879

3.计算运行时间差：

Python代码

#coding=utf-8 
<pre> 
import time 
import datetime 
 
starttime = datetime.datetime.now() 
 
time.sleep(3) 
 
endtime = datetime.datetime.now() 
print (endtime - starttime).seconds <strong> </strong>

输出结果是：3

4，计算十天后的日期时间：

Python代码

#coding=utf-8 
 
import time 
import datetime 
 
d1 = datetime.datetime.now() 
d3 = d1 + datetime.timedelta(days =10) 
 
print str(d3) 
print d3.ctime()<strong> </strong>

输出结果：

2015-11-15 14:44:04.291000
Sun Nov 15 14:44:04 2015

5，阳历转阴历

#! -*- encoding: GBK -*- 
 
import re 
import math 
import time 
import os 
 
MONTH_NAME = ["", "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"] 
MONTH_DAYS = [0,31,28,31,30,31,30,31,31,30,31,30,31]; 
 
LUNAR_CALENDAR_TABLE = [ 
 0x04AE53,0x0A5748,0x5526BD,0x0D2650,0x0D9544,0x46AAB9,0x056A4D,0x09AD42,0x24AEB6,0x04AE4A, # //*1901-1910*/ 
 0x6A4DBE,0x0A4D52,0x0D2546,0x5D52BA,0x0B544E,0x0D6A43,0x296D37,0x095B4B,0x749BC1,0x049754, # //*1911-1920*/ 
 0x0A4B48,0x5B25BC,0x06A550,0x06D445,0x4ADAB8,0x02BD,0x095742,0x2497B7,0x04974A,0x6B3E, # //*1921-1930*/ 
 0x0D4A51,0x0EA546,0x56D4BA,0x05AD4E,0x02B4,0x393738,0x092E4B,0x7C96BF,0x0C9553,0x0D4A48, # //*1931-1940*/ 
 0x6DA53B,0x0B554F,0x056A45,0x4AADB9,0x025D4D,0x092D42,0x2C95B6,0x0A954A,0x7B4ABD,0x06CA51, # //*1941-1950*/ 
 0x0B5546,0x555ABB,0x04DA4E,0x0A5B43,0x352BB8,0x052B4C,0x8A953F,0x0E9552,0x06AA48,0x6AD53C, # //*1951-1960*/ 
 0x0AB54F,0x04B5,0x4A5739,0x0A574D,0x0522,0x3E9335,0x0D9549,0x75AABE,0x056A51,0x096D46, # //*1961-1970*/ 
 0x54AEBB,0x04AD4F,0x0A4D43,0x4D26B7,0x0D254B,0x8D52BF,0x0B5452,0x0B6A47,0x696D3C,0x095B50, # //*1971-1980*/ 
 0x049B45,0x4A4BB9,0x0A4B4D,0xAB25C2,0x06A554,0x06D449,0x6ADA3D,0x0AB651,0x093746,0x5497BB, # //*1981-1990*/ 
 0x04974F,0x0B44,0x36A537,0x0EA54A,0x86B2BF,0x05AC53,0x0AB7,0x5936BC,0x092E50,0x0C95, # //*1991-2000*/ 
 0x4D4AB8,0x0D4A4C,0x0DA541,0x25AAB6,0x056A49,0x7AADBD,0x025D52,0x092D47,0x5C95BA,0x0A954E, # //*2001-2010*/ 
 0x0B4A43,0x4B5537,0x0AD54A,0x955ABF,0x04BA53,0x0A5B48,0x652BBC,0x052B50,0x0A9345,0x474AB9, # //*2011-2020*/ 
 0x06AA4C,0x0AD541,0x24DAB6,0x04BA,0x69573D,0x0A4E51,0x0D26,0x5E933A,0x0D534D,0x05AA43, # //*2021-2030*/ 
 0x36B537,0x096D4B,0xB4AEBF,0x04AD53,0x0A4D48,0x6D25BC,0x0D254F,0x0D5244,0x5DAA38,0x0B5A4C, # //*2031-2040*/ 
 0x056D41,0x24ADB6,0x049B4A,0x7A4BBE,0x0A4B51,0x0AA546,0x5B52BA,0x06D24E,0x0ADA42,0x355B37, # //*2041-2050*/ 
 0x09374B,0x8497C1,0x049753,0x0B48,0x66A53C,0x0EA54F,0x06B244,0x4AB638,0x0AAE4C,0x092E42, # //*2051-2060*/ 
 0x3C9735,0x0C99,0x7D4ABD,0x0D4A51,0x0DA545,0x55AABA,0x056A4E,0x0A6D43,0x452EB7,0x052D4B, # //*2061-2070*/ 
 0x8A95BF,0x0A9553,0x0B4A47,0x6B553B,0x0AD54F,0x055A45,0x4A5D38,0x0A5B4C,0x052B42,0x3A93B6, # //*2071-2080*/ 
 0x069349,0x7729BD,0x06AA51,0x0AD546,0x54DABA,0x04BE,0x0A5743,0x452738,0x0D2A,0x8E933E, # //*2081-2090*/ 
 0x0D5252,0x0DAA47,0x66B53B,0x056D4F,0x04AE45,0x4A4EB9,0x0A4D4C,0x0D1541,0x2D92B5 # //*2091-2099*/ 
] 
# 下面的三个表格是农历数据表 LunarCalendarTable 的结构。总共使用了32位整数的0～23位。 
# 
# 6 5 4 3 2 1 0 
# 表示春节的公历月份 表示春节的公历日期 
# 
# 19 18 17 16 15 14 13 12 11 10 9 8 7 
# 1 2 3 4 5 6 7 8 9 10 11 12 13 
# 农历1-13 月大小 。月份对应位为1，农历月大(30 天),为0 表示小(29 天) 
# 
# 23 22 21 20 
# 表示当年闰月月份，值为0 为则表示当年无闰月。 
 
def get_month_days(year, month): 
 global MONTH_DAYS; 
 if(month==2): 
 if(((year%4 == 0) and (year%100 != 0)) or (year%400 == 0)): 
 return 29 
 else: 
 return 28 
 else: 
 return(MONTH_DAYS[month]); 
 
def get_syear_days(syear): 
 if(((syear%4 == 0) and (syear%100 != 0)) or (syear%400 == 0)): 
 return 366 
 else: 
 return 365 
 
def get_days_of_syear(syear, smonth, sday): 
 """ get given day's number of sun year """ 
 days = 0 
 for i in range(1, smonth): 
 days += get_month_days(syear, i) 
 days += sday 
 return days 
 
def get_days_of_lyear(syear, smonth, sday): 
 """ get given day's number of the lunar year """ 
 global LUNAR_CALENDAR_TABLE 
 lyear = syear 
 spring_month = (LUNAR_CALENDAR_TABLE[syear-1901] & 0x60) >> 5 
 spring_day = (LUNAR_CALENDAR_TABLE[syear-1901] & 0x1F) 
 if ((spring_month > smonth) or ((spring_month == smonth) and (spring_day > sday))): 
 # the day is before spring festival day, and is previous day in lunar year 
 spring_month = (LUNAR_CALENDAR_TABLE[syear-1901 - 1] & 0x60) >> 5 
 spring_day = (LUNAR_CALENDAR_TABLE[syear-1901 - 1] & 0x1F) 
 lyear -= 1 
 lunar_days = get_syear_days(lyear) + get_days_of_syear(syear, smonth, sday) 
 - get_days_of_syear(lyear, spring_month, spring_day) 
 else: 
 lunar_days = get_days_of_syear(syear, smonth, sday) 
 - get_days_of_syear(syear, spring_month, spring_day) 
 lunar_days += 1 # consider current day 
 return (lyear, lunar_days) 
 
def get_lunar_date(syear, smonth, sday): 
 if syear < 1901 or syear > 2099: 
 return 
 # lunar year, lunar days to spring festival 
 lyear, lunar_days = get_days_of_lyear(syear, smonth, sday); 
 l_double_month = (LUNAR_CALENDAR_TABLE[lyear-1901] >> 20 ) & 0xF 
 
 lmonth = lday = 1 
 bits = 19 
 month_begin_day = 0 
 for lmonth in range(1, 14): 
 l_month_big = (LUNAR_CALENDAR_TABLE[lyear-1901] >> bits) & 0x1 
 if month_begin_day + 29 + l_month_big < lunar_days: 
 lmonth += 1 
 month_begin_day += 29 + l_month_big 
 else: 
 lday = lunar_days - month_begin_day 
 break 
 bits -= 1 
 if l_double_month: 
 # lunar double month adjust 
 if l_double_month == lmonth - 1: 
 lmonth -= 1 
 lmonth += 100 # double month 
 elif l_double_month < lmonth - 1: 
 lmonth -= 1 
 return (lyear, lmonth, lday) 
 
if __name__ == "__main__": 
 y,m,d = 2010, 9, 28 
 print "Sun calendar 2010-9-28 == Lunar calendar ", get_lunar_date(y,m,d)

输出结果：

Sun calendar 2010-9-28 == Lunar calendar (2010, 8, 21)

Python版的农历日历Calendar：

#coding=utf-8 
 
#参见：http://download.csdn.net/source/1178 
 
#****************************************************************************** 
# 下面为阴历计算所需的数据,为节省存储空间,所以采用下面比较变态的存储方法. 
#****************************************************************************** 
#数组g_lunar_month_day存入阴历1901年到2050年每年中的月天数信息， 
#阴历每月只能是29或30天，一年用12（或13）个二进制位表示，对应位为1表30天，否则为29天 
g_lunar_month_day = [ 
 0x4ae0, 0xa570, 0x5268, 0xd260, 0xd950, 0x6aa8, 0x56a0, 0x9ad0, 0x4ae8, 0x4ae0, #1910 
 0xa4d8, 0xa4d0, 0xd250, 0xd548, 0xb550, 0x56a0, 0x96d0, 0x95b0, 0x49b8, 0x49b0, #1920 
 0xa4b0, 0xb258, 0x6a50, 0x6d40, 0xada8, 0x2b60, 0x9570, 0x4978, 0x4970, 0xb0, #1930 
 0xd4a0, 0xea50, 0x6d48, 0x5ad0, 0x2b60, 0x9370, 0x92e0, 0xc968, 0xc950, 0xd4a0, #1940 
 0xda50, 0xb550, 0x56a0, 0xaad8, 0x25d0, 0x92d0, 0xc958, 0xa950, 0xb4a8, 0x6ca0, #1950 
 0xb550, 0x55a8, 0x4da0, 0xa5b0, 0x52b8, 0x52b0, 0xa950, 0xe950, 0x6aa0, 0xad50, #1960 
 0xab50, 0x4b60, 0xa570, 0xa570, 0x5260, 0xe930, 0xd950, 0x5aa8, 0x56a0, 0x96d0, #1970 
 0x4ae8, 0x4ad0, 0xa4d0, 0xd268, 0xd250, 0xd528, 0xb540, 0xb6a0, 0x96d0, 0x95b0, #1980 
 0x49b0, 0xa4b8, 0xa4b0, 0xb258, 0x6a50, 0x6d40, 0xada0, 0xab60, 0x9370, 0x4978, #1990 
 0x4970, 0xb0, 0x6a50, 0xea50, 0x6b28, 0x5ac0, 0xab60, 0x9368, 0x92e0, 0xc960, #2000 
 0xd4a8, 0xd4a0, 0xda50, 0x5aa8, 0x56a0, 0xaad8, 0x25d0, 0x92d0, 0xc958, 0xa950, #2010 
 0xb4a0, 0xb550, 0xb550, 0x55a8, 0x4ba0, 0xa5b0, 0x52b8, 0x52b0, 0xa930, 0x74a8, #2020 
 0x6aa0, 0xad50, 0x4da8, 0x4b60, 0x9570, 0xa4e0, 0xd260, 0xe930, 0xd530, 0x5aa0, #2030 
 0x6b50, 0x96d0, 0x4ae8, 0x4ad0, 0xa4d0, 0xd258, 0xd250, 0xd520, 0xdaa0, 0xb5a0, #2040 
 0x56d0, 0x4ad8, 0x49b0, 0xa4b8, 0xa4b0, 0xaa50, 0xb528, 0x6d20, 0xada0, 0x55b0, #2050 
] 
 
#数组gLanarMonth存放阴历1901年到2050年闰月的月份，如没有则为0，每字节存两年 
g_lunar_month = [ 
 0x00, 0x50, 0x04, 0x00, 0x20, #1910 
 0x60, 0x05, 0x00, 0x20, 0x70, #1920 
 0x05, 0x00, 0x40, 0x02, 0x06, #1930 
 0x00, 0x50, 0x03, 0x07, 0x00, #1940 
 0x60, 0x04, 0x00, 0x20, 0x70, #1950 
 0x05, 0x00, 0x30, 0x80, 0x06, #1960 
 0x00, 0x40, 0x03, 0x07, 0x00, #1970 
 0x50, 0x04, 0x08, 0x00, 0x60, #1980 
 0x04, 0x0a, 0x00, 0x60, 0x05, #1990 
 0x00, 0x30, 0x80, 0x05, 0x00, #2000 
 0x40, 0x02, 0x07, 0x00, 0x50, #2010 
 0x04, 0x09, 0x00, 0x60, 0x04, #2020 
 0x00, 0x20, 0x60, 0x05, 0x00, #2030 
 0x30, 0xb0, 0x06, 0x00, 0x50, #2040 
 0x02, 0x07, 0x00, 0x50, 0x03 #2050 
] 
 
#================================================================================== 
 
from datetime import date, datetime 
from calendar import Calendar as Cal 
 
START_YEAR = 1901 
 
def is_leap_year(tm): 
 y = tm.year 
 return (not (y % 4)) and (y % 100) or (not (y % 400)) 
 
def show_month(tm): 
 (ly, lm, ld) = get_ludar_date(tm) 
 print 
 print u"%d年%d月%d日" % (tm.year, tm.month, tm.day), week_str(tm), 
 print u"	农历：", y_lunar(ly), m_lunar(lm), d_lunar(ld) 
 print 
 print u"日	一	二	三	四	五	六" 
 
 c = Cal() 
 ds = [d for d in c.itermonthdays(tm.year, tm.month)] 
 count = 0 
 for d in ds: 
 count += 1 
 if d == 0: 
 print "	", 
 continue 
 
 (ly, lm, ld) = get_ludar_date(datetime(tm.year, tm.month, d)) 
 if count % 7 == 0: 
 print 
 
 d_str = str(d) 
 if d == tm.day: 
 d_str = u"*" + d_str 
 print d_str + d_lunar(ld) + u"	", 
 print 
 
def this_month(): 
 show_month(datetime.now()) 
 
def week_str(tm): 
 a = u'星期一 星期二 星期三 星期四 星期五 星期六 星期日'.split() 
 return a[tm.weekday()] 
 
def d_lunar(ld): 
 a = u'初一 初二 初三 初四 初五 初六 初七 初八 初九 初十 十一 十二 十三 十四 十五 十六 十七 十八 十九 廿十 廿一 廿二 廿三 廿四 廿五 廿六 廿七 廿八 廿九 三十'.split() 
 return a[ld - 1] 
 
def m_lunar(lm): 
 a = u'正月 二月 三月 四月 五月 六月 七月 八月 九月 十月 十一月 十二月'.split() 
 return a[lm - 1] 
 
def y_lunar(ly): 
 y = ly 
 tg = u'甲 乙 丙 丁 戊 己 庚 辛 壬 癸'.split() 
 dz = u'子 丑 寅 卯 辰 巳 午 未 申 酉 戌 亥'.split() 
 sx = u'鼠 牛 虎 免 龙 蛇 马 羊 猴 鸡 狗 猪'.split() 
 return tg[(y - 4) % 10] + dz[(y - 4) % 12] + u' ' + sx[(y - 4) % 12] + u'年' 
 
def date_diff(tm): 
 return (tm - datetime(1901, 1, 1)).days 
 
def get_leap_month(lunar_year): 
 flag = g_lunar_month[(lunar_year - START_YEAR) / 2] 
 if (lunar_year - START_YEAR) % 2: 
 return flag & 0x0f 
 else: 
 return flag >> 4 
 
def lunar_month_days(lunar_year, lunar_month): 
 if (lunar_year < START_YEAR): 
 return 30 
 
 high, low = 0, 29 
 iBit = 16 - lunar_month; 
 
 if (lunar_month > get_leap_month(lunar_year) and get_leap_month(lunar_year)): 
 iBit -= 1 
 
 if (g_lunar_month_day[lunar_year - START_YEAR] & (1 << iBit)): 
 low += 1 
 
 if (lunar_month == get_leap_month(lunar_year)): 
 if (g_lunar_month_day[lunar_year - START_YEAR] & (1 << (iBit -1))): 
 high = 30 
 else: 
 high = 29 
 
 return (high, low) 
 
def lunar_year_days(year): 
 days = 0 
 for i in range(1, 13): 
 (high, low) = lunar_month_days(year, i) 
 days += high 
 days += low 
 return days 
 
def get_ludar_date(tm): 
 span_days = date_diff(tm) 
 
 #阳历1901年2月19日为阴历1901年正月初一 
 #阳历1901年1月1日到2月19日共有49天 
 if (span_days <49): 
 year = START_YEAR - 1 
 if (span_days <19): 
 month = 11; 
 day = 11 + span_days 
 else: 
 month = 12; 
 day = span_days - 18 
 return (year, month, day) 
 
 #下面从阴历1901年正月初一算起 
 span_days -= 49 
 year, month, day = START_YEAR, 1, 1 
 #计算年 
 tmp = lunar_year_days(year) 
 while span_days >= tmp: 
 span_days -= tmp 
 year += 1 
 tmp = lunar_year_days(year) 
 
 #计算月 
 (foo, tmp) = lunar_month_days(year, month) 
 while span_days >= tmp: 
 span_days -= tmp 
 if (month == get_leap_month(year)): 
 (tmp, foo) = lunar_month_days(year, month) 
 if (span_days < tmp): 
 return (0, 0, 0) 
 span_days -= tmp 
 month += 1 
 (foo, tmp) = lunar_month_days(year, month) 
 
 #计算日 
 day += span_days 
 return (year, month, day) 
 
#功能简单，只打印当月的 
this_month()

输出结果：

2015年11月5日 星期四 农历： 乙未 羊年 九月 廿四

日一二三四 五六

1廿十2廿一 3廿二4廿三 *5廿四6廿五 7廿六
8廿七9廿八 10廿九11三十 12初一13初二 14初三
15初四16初五 17初六18初七 19初八20初九 21初十
22十一23十二 24十三25十四 26十五27十六 28十七
29十八30十九

计算年龄：

from time import * 
#a function to find your age 
def age(): 
 print "Enter Your Date of Birth" 
 d=input("Day:") 
 m=input("Month:") 
 y=input("Year:") 
 #get the current time in tuple format 
 a=gmtime() 
 #difference in day 
 dd=a[2]-d 
 #difference in month 
 dm=a[1]-m 
 #difference in year 
 dy=a[0]-y 
 #checks if difference in day is negative 
 if dd<0: 
 dd=dd+30 
 dm=dm-1 
 #checks if difference in month is negative when difference in day is also negative 
 if dm<0: 
 dm=dm+12 
 dy=dy-1 
 #checks if difference in month is negative when difference in day is positive 
 if dm<0: 
 dm=dm+12 
 dy=dy-1 
 print "Your current age is %s Years %s Months & %s Days"%(dy,dm,dd) 
 
age()