用VB做万年历，非常关键点就是农历写法，参考代码如下：
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#Region " 返回农历 "
'返回农历
'cCalendar.MaxSupportedDateTime 返回支持的最大日期，即2101-1-28
'cCalendar.MinSupportedDateTime 返回支持的最小日期，即190－2-19
Private cCalendar As New System.Globalization.ChineseLunisolarCalendar
Public Function PubFunGet_CNDate(ByVal sDateTime As Date) As String
cCalendar = New System.Globalization.ChineseLunisolarCalendar
Dim lyear As Integer = cCalendar.GetYear(sDateTime)
Dim lmonth As Integer = cCalendar.GetMonth(sDateTime)
Dim lday As Integer = cCalendar.GetDayOfMonth(sDateTime)
Dim lweek As Integer = cCalendar.GetDayOfWeek(sDateTime)
'获取闰月， 0 则表示没有闰月
Dim leapMonth As Integer = cCalendar.GetLeapMonth(lyear)
Dim isleap As Boolean = False
If (leapMonth 0) Then
If (leapMonth = lmonth) Then
'闰月
isleap = True
lmonth = lmonth - 1
ElseIf (lmonth leapMonth) Then
lmonth = lmonth - 1
End If
End If
Return String.Concat(GetLunisolarYear(lyear), IIf(isleap = True, "闰年", "年"), GetLunisolarMonth(lmonth), "月", GetLunisolarDay(lday))
End Function
'十天干
Private tiangan As String() = {"甲", "乙", "丙", "丁", "戊", "己", "庚", "辛", "壬", "癸"}
'十二地支
Private dizhi As String() = {"子", "丑", "寅", "卯", "辰", "巳", "午", "未", "申", "酉", "戌", "亥"}
'十二生肖
Private shengxiao As String() = {"鼠", "牛", "虎", "免", "龙", "蛇", "马", "羊", "猴", "鸡", "狗", "猪"}
'农历月
Private months As String() = {"正", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二(腊)"}
'农历日
Private days1 As String() = {"初", "十", "廿", "三"}
Private days As String() = {"一", "二", "三", "四", "五", "六", "七", "八", "九", "十"}
'返回农历年（天干 地支 生肖）
Private Function GetLunisolarYear(ByVal year As Integer) As String
GetLunisolarYear = ""
If (year 3) Then
Dim tgIndex As Integer = (year - 4) Mod 10
Dim dzIndex As Integer = (year - 4) Mod 12
Return tiangan(tgIndex) dizhi(dzIndex) "[" shengxiao(dzIndex) "]"
End If
'无效的年份!
End Function
'返回生肖
Private Function GetShengXiao(ByVal sDateTime As Date) As String
Return shengxiao(cCalendar.GetTerrestrialBranch(cCalendar.GetSexagenaryYear(sDateTime)) - 1)
End Function
'返回农历月
Private Function GetLunisolarMonth(ByVal month As Integer) As String
GetLunisolarMonth = ""
If (month 13 AndAlso month 0) Then
Return months(month - 1)
End If
'无效的月份!
End Function
'返回农历日
Private Function GetLunisolarDay(ByVal day As Integer) As String
GetLunisolarDay = ""
If (day 0 AndAlso day 32) Then
If (day 20 AndAlso day 30) Then
Return String.Concat(days1((day - 1) \ 10), days((day - 1) Mod 10))
Else
Return String.Concat(days((day - 1) \ 10), days1(1))
End If
End If
'无效的日!
End Function
#End Region
古时侯有个青年姓万，名年。他看到当时的节令很乱，就产生了把节令定准的念头。要想把节令定准，首先就要找到计算时间的方法。
人一旦对什么问题产生意念，意识就会围着这个意念工作。一天，万年上山砍柴，累了，坐在树阴下休息，树影的移动对他产生了启发。于是他设计了一个测日影计天时的日晷，用于测定一天的时间。
后来，山崖上的滴泉又启发了他的灵感，他又动手做了一个五层漏壶，来计算时间。
天长日久，他发现每隔360天，四季就轮回一次，天时的长短就重复一遍。
当时的国君叫祖乙，也常为天气风云的不测感到苦恼。万年得知这个消息后，就带着日晷和漏斗去见国君。
万年向国君祖乙讲清了日月运行的规律，祖乙龙颜大悦，便把万年留下，在皇城修天坛，建日月阁，筑起日晷台和漏壶亭。希望能测准日月规律，推算出准确的晨夕时间，创建历法，为天下的黎民百姓造福。
有一次，祖乙去了解万年测试历法的进展情况。当他登上天坛时，看见天坛边的石壁上刻着一首诗:
日出日落三百六，
周而复始从头来。
草木枯荣分四时，
一岁月有十二圆。
看完诗，祖乙知道万年创建历法已成，便亲自登上日月阁看望万年。
万年指着天象，对祖乙说:“现在正是十二个月满，旧岁已完，新春复始，祈请国君定个节吧。”
祖乙说:“春为岁首，就叫春节吧。”
据说这就是春节的来历。
冬去春来，年复一年，万年经过长期观察，精心推算，制定出了准确的太阳历。
当万年把太阳历呈奉给继任的国君时，已是满面银须。
新任国君深为感动，为纪念万年的功绩，便将太阳历命名为《万年历》，封万年为日月寿星。
以后，人们在过年时挂上寿星图，据说就是为了纪念德高望重的万年。
没有。我国农历月份有大小建之分，大建30天，小建29天，没有其他的天数。
给你个农历的VB源码.
curTime = MaskEdBox1
'星期名
WeekName(0) = " * "
WeekName(1) = "星期日"
WeekName(2) = "星期一"
WeekName(3) = "星期二"
WeekName(4) = "星期三"
WeekName(5) = "星期四"
WeekName(6) = "星期五"
WeekName(7) = "星期六"
'天干名称
TianGan(0) = "甲"
TianGan(1) = "乙"
TianGan(2) = "丙"
TianGan(3) = "丁"
TianGan(4) = "戊"
TianGan(5) = "己"
TianGan(6) = "庚"
TianGan(7) = "辛"
TianGan(8) = "壬"
TianGan(9) = "癸"
'地支名称
DiZhi(0) = "子"
DiZhi(1) = "丑"
DiZhi(2) = "寅"
DiZhi(3) = "卯"
DiZhi(4) = "辰"
DiZhi(5) = "巳"
DiZhi(6) = "午"
DiZhi(7) = "未"
DiZhi(8) = "申"
DiZhi(9) = "酉"
DiZhi(10) = "戌"
DiZhi(11) = "亥"
'属相名称
ShuXiang(0) = "鼠"
ShuXiang(1) = "牛"
ShuXiang(2) = "虎"
ShuXiang(3) = "兔"
ShuXiang(4) = "龙"
ShuXiang(5) = "蛇"
ShuXiang(6) = "马"
ShuXiang(7) = "羊"
ShuXiang(8) = "猴"
ShuXiang(9) = "鸡"
ShuXiang(10) = "狗"
ShuXiang(11) = "猪"
'农历日期名
DayName(0) = "*"
DayName(1) = "初一"
DayName(2) = "初二"
DayName(3) = "初三"
DayName(4) = "初四"
DayName(5) = "初五"
DayName(6) = "初六"
DayName(7) = "初七"
DayName(8) = "初八"
DayName(9) = "初九"
DayName(10) = "初十"
DayName(11) = "十一"
DayName(12) = "十二"
DayName(13) = "十三"
DayName(14) = "十四"
DayName(15) = "十五"
DayName(16) = "十六"
DayName(17) = "十七"
DayName(18) = "十八"
DayName(19) = "十九"
DayName(20) = "二十"
DayName(21) = "廿一"
DayName(22) = "廿二"
DayName(23) = "廿三"
DayName(24) = "廿四"
DayName(25) = "廿五"
DayName(26) = "廿六"
DayName(27) = "廿七"
DayName(28) = "廿八"
DayName(29) = "廿九"
DayName(30) = "三十"
'农历月份名
MonName(0) = "*"
MonName(1) = "正"
MonName(2) = "二"
MonName(3) = "三"
MonName(4) = "四"
MonName(5) = "五"
MonName(6) = "六"
MonName(7) = "七"
MonName(8) = "八"
MonName(9) = "九"
MonName(10) = "十"
MonName(11) = "十一"
MonName(12) = "腊"
'公历每月前面的天数
MonthAdd(0) = 0
MonthAdd(1) = 31
MonthAdd(2) = 59
MonthAdd(3) = 90
MonthAdd(4) = 120
MonthAdd(5) = 151
MonthAdd(6) = 181
MonthAdd(7) = 212
MonthAdd(8) = 243
MonthAdd(9) = 273
MonthAdd(10) = 304
MonthAdd(11) = 334
'农历数据
NongliData(0) = 2635
NongliData(1) = 333387
NongliData(2) = 1701
NongliData(3) = 1748
NongliData(4) = 267701
NongliData(5) = 694
NongliData(6) = 2391
NongliData(7) = 133423
NongliData(8) = 1175
NongliData(9) = 396438
NongliData(10) = 3402
NongliData(11) = 3749
NongliData(12) = 331177
NongliData(13) = 1453
NongliData(14) = 694
NongliData(15) = 201326
NongliData(16) = 2350
NongliData(17) = 465197
NongliData(18) = 3221
NongliData(19) = 3402
NongliData(20) = 400202
NongliData(21) = 2901
NongliData(22) = 1386
NongliData(23) = 267611
NongliData(24) = 605
NongliData(25) = 2349
NongliData(26) = 137515
NongliData(27) = 2709
NongliData(28) = 464533
NongliData(29) = 1738
NongliData(30) = 2901
NongliData(31) = 330421
NongliData(32) = 1242
NongliData(33) = 2651
NongliData(34) = 199255
NongliData(35) = 1323
NongliData(36) = 529706
NongliData(37) = 3733
NongliData(38) = 1706
NongliData(39) = 398762
NongliData(40) = 2741
NongliData(41) = 1206
NongliData(42) = 267438
NongliData(43) = 2647
NongliData(44) = 1318
NongliData(45) = 204070
NongliData(46) = 3477
NongliData(47) = 461653
NongliData(48) = 1386
NongliData(49) = 2413
NongliData(50) = 330077
NongliData(51) = 1197
NongliData(52) = 2637
NongliData(53) = 268877
NongliData(54) = 3365
NongliData(55) = 531109
NongliData(56) = 2900
NongliData(57) = 2922
NongliData(58) = 398042
NongliData(59) = 2395
NongliData(60) = 1179
NongliData(61) = 267415
NongliData(62) = 2635
NongliData(63) = 661067
NongliData(64) = 1701
NongliData(65) = 1748
NongliData(66) = 398772
NongliData(67) = 2742
NongliData(68) = 2391
NongliData(69) = 330031
NongliData(70) = 1175
NongliData(71) = 1611
NongliData(72) = 200010
NongliData(73) = 3749
NongliData(74) = 527717
NongliData(75) = 1452
NongliData(76) = 2742
NongliData(77) = 332397
NongliData(78) = 2350
NongliData(79) = 3222
NongliData(80) = 268949
NongliData(81) = 3402
NongliData(82) = 3493
NongliData(83) = 133973
NongliData(84) = 1386
NongliData(85) = 464219
NongliData(86) = 605
NongliData(87) = 2349
NongliData(88) = 334123
NongliData(89) = 2709
NongliData(90) = 2890
NongliData(91) = 267946
NongliData(92) = 2773
NongliData(93) = 592565
NongliData(94) = 1210
NongliData(95) = 2651
NongliData(96) = 395863
NongliData(97) = 1323
NongliData(98) = 2707
NongliData(99) = 265877
'生成当前公历年、月、日 == GongliStr
curYear = Year(curTime)
curMonth = Month(curTime)
curDay = Day(curTime)
GongliStr = curYear "年"
If curMonth 10 Then
GongliStr = GongliStr "0" curMonth "月"
Else
GongliStr = GongliStr curMonth "月"
End If
If curDay 10 Then
GongliStr = GongliStr "0" curDay "日"
Else
GongliStr = GongliStr curDay "日"
End If
'生成当前公历星期 == WeekdayStr
curWeekday = Weekday(curTime)
WeekdayStr = WeekName(curWeekday)
'计算到初始时间1921年2月8日的天数：1921-2-8(正月初一)
TheDate = (curYear - 1921) * 365 + Int((curYear - 1921) / 4) + curDay + MonthAdd(curMonth - 1) - 38
If curYear Mod 4 = 0 And curMonth 2 Then
TheDate = TheDate + 1
End If
'计算农历天干、地支、月、日
isEnd = 0
m = 0
Do
If NongliData(m) 4095 Then
k = 11
Else
k = 12
End If
n = k
Do
If n 0 Then
Exit Do
End If
'获取NongliData(m)的第n个二进制位的值
bit = NongliData(m)
For i = 1 To n Step 1
bit = Int(bit / 2)
Next
bit = bit Mod 2
If TheDate = 29 + bit Then
isEnd = 1
Exit Do
End If
TheDate = TheDate - 29 - bit
n = n - 1
Loop
If isEnd = 1 Then
Exit Do
End If
m = m + 1
Loop
curYear = 1921 + m
curMonth = k - n + 1
curDay = TheDate
If k = 12 Then
If curMonth = (Int(NongliData(m) / 65536) + 1) Then
curMonth = 1 - curMonth
ElseIf curMonth Int(NongliData(m) / 65536) + 1 Then
curMonth = curMonth - 1
End If
End If
'生成农历天干、地支、属相 == NongliStr
NongliStr = "农历" TianGan(((curYear - 4) Mod 60) Mod 10) DiZhi(((curYear - 4) Mod 60) Mod 12) "年"
NongliStr = NongliStr "(" ShuXiang(((curYear - 4) Mod 60) Mod 12) ")"
'生成农历月、日 == NongliDayStr
If curMonth 1 Then
NongliDayStr = "闰" MonName(-1 * curMonth)
Else
NongliDayStr = MonName(curMonth)
End If
NongliDayStr = NongliDayStr "月"
NongliDayStr = NongliDayStr DayName(curDay)
Label2 = NongliStr NongliDayStr
在左边工具栏单击右键-部件-Microsoft Calendar Control 8.0勾选-应用-确定
然后该控件就添加到工具箱里了