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| Guest |
 Posted: Mon Mar 01, 2010 2:04 pm |
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Guest
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Hello.
It seems a part of calendar library thinks there is February 29, 2010.
# date +%s
1267451701
Eshell V5.7.4 (abort with ^G)
1> calendar:gregorian_seconds_to_datetime(1267451701).
{{40,2,29},{13,55,1}}
Best regards,
Sergei Fomin
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| Guest |
| Posted: Mon Mar 01, 2010 2:36 pm |
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Guest
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Oh, my fault.
Thank you.
Best regards,
Sergei Fomin
Trevor Woollacott [ MTN - Innovation Centre ] wrote:
> Hi Sergei
>
> Date +%s does not return the date and time in Gregorian seconds, rather the number of seconds since 1970-01-01 00:00:00 UTC. If you try to convert the number of seconds since 1970 back to into the date & time tuple it correctly calculates the year at 40AD, which is a leap year.
>
> Regards,
> Trevor
>
>
> -----Original Message-----
> From: erlang-bugs@erlang.org [mailto:erlang-bugs@erlang.org] On Behalf Of Sergei Fomin
> Sent: Monday, 01 March 2010 04:05 PM
> To: erlang-bugs@erlang.org
> Subject: [erlang-bugs] Wrong gregorian date
>
> Hello.
>
> It seems a part of calendar library thinks there is February 29, 2010.
>
> # date +%s
> 1267451701
>
> Eshell V5.7.4 (abort with ^G)
> 1> calendar:gregorian_seconds_to_datetime(1267451701).
> {{40,2,29},{13,55,1}}
>
>
> Best regards,
> Sergei Fomin
>
>
>
> ________________________________________________________________
> erlang-bugs (at) erlang.org mailing list.
> See http://www.erlang.org/faq.html
> To unsubscribe; mailto:erlang-bugs-unsubscribe@erlang.org
>
>
> NOTE: This e-mail message is subject to the MTN Group disclaimer see http://www.mtn.co.za/SUPPORT/LEGAL/Pages/EmailDisclaimer.aspx
>
________________________________________________________________
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| TrevorWoollacott |
| Posted: Mon Mar 01, 2010 2:42 pm |
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Joined: 27 Jul 2007
Posts: 8
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Hi Sergei
Date +%s does not return the date and time in Gregorian seconds, rather the number of seconds since 1970-01-01 00:00:00 UTC. If you try to convert the number of seconds since 1970 back to into the date & time tuple it correctly calculates the year at 40AD, which is a leap year.
Regards,
Trevor
-----Original Message-----
From: erlang-bugs@erlang.org [mailto:erlang-bugs@erlang.org] On Behalf Of Sergei Fomin
Sent: Monday, 01 March 2010 04:05 PM
To: erlang-bugs@erlang.org
Subject: [erlang-bugs] Wrong gregorian date
Hello.
It seems a part of calendar library thinks there is February 29, 2010.
# date +%s
1267451701
Eshell V5.7.4 (abort with ^G)
1> calendar:gregorian_seconds_to_datetime(1267451701).
{{40,2,29},{13,55,1}}
Best regards,
Sergei Fomin
________________________________________________________________
erlang-bugs (at) erlang.org mailing list.
See http://www.erlang.org/faq.html
To unsubscribe; mailto:erlang-bugs-unsubscribe@erlang.org
NOTE: This e-mail message is subject to the MTN Group disclaimer see http://www.mtn.co.za/SUPPORT/LEGAL/Pages/EmailDisclaimer.aspx
________________________________________________________________
erlang-bugs (at) erlang.org mailing list.
See http://www.erlang.org/faq.html
To unsubscribe; mailto:erlang-bugs-unsubscribe@erlang.org
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| Guest |
| Posted: Mon Mar 01, 2010 3:29 pm |
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Guest
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But the date you provided is not gregorian seconds.
try
calendar:datetime_to_gregorian_seconds({date(),time()}).
63434683473
.
The result you actually got is February 29, 2040 - you can ensure that this
year is leap year  .
On Mon, Mar 1, 2010 at 4:05 PM, Sergei Fomin <dafgar@yandex-team.ru> wrote:
> Hello.
>
> It seems a part of calendar library thinks there is February 29, 2010.
>
> # date +%s
> 1267451701
>
> Eshell V5.7.4 (abort with ^G)
> 1> calendar:gregorian_seconds_to_datetime(1267451701).
> {{40,2,29},{13,55,1}}
>
>
> Best regards,
> Sergei Fomin
>
>
>
> ________________________________________________________________
> erlang-bugs (at) erlang.org mailing list.
> See http://www.erlang.org/faq.html
> To unsubscribe; mailto:erlang-bugs-unsubscribe@erlang.org
>
>
--
Best regards,
Alex Kutsko
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| Guest |
| Posted: Mon Mar 01, 2010 3:34 pm |
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Guest
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Sorry to be precise you've got February, 29 of 0040 year
On Mon, Mar 1, 2010 at 5:29 PM, Alex Kutsko <alex.kutsko@itteco.com> wrote:
> But the date you provided is not gregorian seconds.
> try
> calendar:datetime_to_gregorian_seconds({date(),time()}).
> 63434683473
> .
> The result you actually got is February 29, 2040 - you can ensure that this
> year is leap year .
>
>
>
> On Mon, Mar 1, 2010 at 4:05 PM, Sergei Fomin <dafgar@yandex-team.ru>wrote:
>
>> Hello.
>>
>> It seems a part of calendar library thinks there is February 29, 2010.
>>
>> # date +%s
>> 1267451701
>>
>> Eshell V5.7.4 (abort with ^G)
>> 1> calendar:gregorian_seconds_to_datetime(1267451701).
>> {{40,2,29},{13,55,1}}
>>
>>
>> Best regards,
>> Sergei Fomin
>>
>>
>>
>> ________________________________________________________________
>> erlang-bugs (at) erlang.org mailing list.
>> See http://www.erlang.org/faq.html
>> To unsubscribe; mailto:erlang-bugs-unsubscribe@erlang.org
>>
>>
>
>
> --
> Best regards,
> Alex Kutsko
>
--
Best regards,
Alex Kutsko
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| Guest |
| Posted: Tue Mar 02, 2010 4:34 am |
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Guest
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So Sergei should use :
calendar:gregorian_seconds_to_datetime(1267451701+62167219200).
Where does that magic number "62167219200" come from? Here:
calendar:datetime_to_gregorian_seconds({{1970, 1, 1}, {0,0,0}}).
Thijs Terlouw
Shenzhen, China,
http://www.startinchina.com/
On Mon, Mar 1, 2010 at 11:33 PM, Alex Kutsko <alex.kutsko@itteco.com> wrote:
> Sorry to be precise you've got February, 29 of 0040 year
>
> On Mon, Mar 1, 2010 at 5:29 PM, Alex Kutsko <alex.kutsko@itteco.com> wrote:
>
>> But the date you provided is not gregorian seconds.
>> try
>> calendar:datetime_to_gregorian_seconds({date(),time()}).
>> 63434683473
>> .
>> The result you actually got is February 29, 2040 - you can ensure that this
>> year is leap year .
>>
>>
>>
>> On Mon, Mar 1, 2010 at 4:05 PM, Sergei Fomin <dafgar@yandex-team.ru>wrote:
>>
>>> Hello.
>>>
>>> It seems a part of calendar library thinks there is February 29, 2010.
>>>
>>> # date +%s
>>> 1267451701
>>>
>>> Eshell V5.7.4 (abort with ^G)
>>> 1> calendar:gregorian_seconds_to_datetime(1267451701).
>>> {{40,2,29},{13,55,1}}
>>>
>>>
>>> Best regards,
>>> Sergei Fomin
>>>
>>>
>>>
>>> ________________________________________________________________
>>> erlang-bugs (at) erlang.org mailing list.
>>> See http://www.erlang.org/faq.html
>>> To unsubscribe; mailto:erlang-bugs-unsubscribe@erlang.org
>>>
>>>
>>
>>
>> --
>> Best regards,
>> Alex Kutsko
>>
>
>
>
> --
> Best regards,
> Alex Kutsko
>
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