Looking date converter javascript for my country date format

[Debendra Oli]

Guys i am looking for a date converter java script for my country date format.
Eg.: my country date is
2070/08/07, when the gregoin date is 2013/11/22.
And i wanna Gregoin to my country date converter and my country date to Gregoin date converter java script.
If you can please help me. I will be really pleased to you.
Best regards.

[jscheuer1]

Here's a converter:

http://www.ashesh.com.np/nepali-date-converter.php

To write it from scratch we would need to know whether or not each day, month, and year corresponds exactly. If they do, simply adding or subtracting so many days will work. If not, the rules of how the two calendars differ would need to be known and used in the conversion.

[Debendra Oli]

I wanna date converter for my website even through i dont wanna using iframe. So i need javascript can u do it for me...
Are u Nepali?

[jscheuer1]

I'm not Nepali, no.

Most calendars are not exactly equal. The current Gregorian one has leap years and even leap seconds. Unless the Bikram sambat has the same ones, we can't just add or subtract an equal number of years, months, and days for each conversion. There is also the matter of the number of days in each month. Unless the Bikram sambat months that correspond to the Gregorian months also have the same number of days as those Gregorian months and begin and end on the same dates, determining the correct month and date number in that month would require taking those differences into account. There could be other differences. And depending upon how accurate you want to be, taking into account the time zone difference between the two geographical locations may need to be included.

As I said before, we would need to know the rules that need to be used to convert one type of date to the other. Do you know anywhere that lists those rules?

[Debendra Oli]

Oh!
I am providing more diffrent information between nepalease date format and gregoien date format!
We have the following month name.
When gregoien month will be:
January 1> Here is Poush 17
Feb 1>Magh 17
Mar 1>Falgun 17
Apr 1>Chaitra 17
May 1>Baisakh 17
Jun 1>Jeth 17
Jul 1>Asadh 17
Aug 1>Srawan 17
Oct 1>Bhadra 17
Sep 1>Asawin 17
Nov 1>Kartik 17
Dec 1>Mansir 17
when here is 17 gregoin will be 1.
Years diffrent is 2070-2013
Gregoin new year starts from Poush 17.
my country timezone is +5:45

First month is Baisakh, second is Baisakh, .....Jeth, Asadh, Swarn, Bhandra, Aswin, Kartik, Mansir, Poush, Magh, Falgun, Chaitra.
Bro pls try for me if you do i will donate you some by heartly.
Bro can i found u in a FB, TWITTER, ETC.
U have website?

[djr33]

When gregoien month will be:
January 1> Here is Poush 17
Feb 1>Magh 17
Mar 1>Falgun 17
Apr 1>Chaitra 17
May 1>Baisakh 17
Jun 1>Jeth 17
Jul 1>Asadh 17
Aug 1>Srawan 17
Oct 1>Bhadra 17
Sep 1>Asawin 17
Nov 1>Kartik 17
Dec 1>Mansir 17
when here is 17 gregoin will be 1.
Years diffrent is 2070-2013
Gregoin new year starts from Poush 17.
my country timezone is +5:45

Is this always true? Does it change from year to year? Is it the same in 2014? 2015? 1999?

And what year is it now? 2013? When does the year end? Which month?

[Debendra Oli]

Oh you don't understand to me!
Today My country date is 2070/08/09
And gregoin is 2013/11/24
I mean The diffrence between gregoin is that when my country goes 17 gregoin goes 1.

17=1
at last The gregoin and my country is "57 years 3 month 15 days difference.

[djr33]

Ok. Is that difference always constant?

Are all of the months the same length? Are the years the same length?


It is VERY easy to add 57y+3m+15d to a date. But that won't work unless it is consistent.

For example, in the year 1900 was it still 57y+3m+15d? And in the year 2100, will it be 57y+3m+15d?

[jscheuer1]

Best I can tell, the Bikram sambat months vary in length from year to year or, probably more accurately stated - from lunar cycle to lunar cycle*. I believe PHP has built in ephemera that can be used to check that during conversion. And I think that's why all the converters I've seen online appear to be server based.

In short, one could easily make a javascript converter that would add 56 Years, 8 Months, and 17 Days to the Gregorian to get the Bikram sambat and vice versa. But there would be many times when it would be off as far as which exact day of which exact month was correct.


* See:

http://calendars.wikia.com/wiki/Bikram_Samwat#Months

for a table that shows each Nepali month as having variable length.

[Debendra Oli]

Ya he is right!

See a nepali calender 2011-12/2070:
https://m.ak.fbcdn.net/sphotos-g.ak/...09278348_o.jpg
and do the best.
Pls guys!
Can i found guys in social networking medias?