GMT - Local Time Converting along with DATE, MONTH and YEAR
in [Fortran]
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From: qquito on 20 Jun 2010 00:23 Dear Everyone: From time to time, I need to call a routine to compute the solar zenith angle and solar azimuth angle, and I need to provide the YEAR, MONTH and DATE and GMT as well as the LONGITUDE of the concerned location. Around the end/beginning of a month and/or a year, the converting of time involves the change of DATE, MONTH and the YEAR. It's pretty much a nuisance! Is there a routine or intrinsic procedure to do the converting along with DATE, MONTH and YEAR? Thank you for reading and replying! --Roland
From: Arjen Markus on 20 Jun 2010 09:42 On 20 jun, 06:23, qquito <qqu...(a)hotmail.com> wrote: > Dear Everyone: > > From time to time, I need to call a routine to compute the solar > zenith angle and solar azimuth angle, and I need to provide the YEAR, > MONTH and DATE and GMT as well as the LONGITUDE of the concerned > location. > > Around the end/beginning of a month and/or a year, the converting of > time involves the change of DATE, MONTH and the YEAR. It's pretty much > a nuisance! > > Is there a routine or intrinsic procedure to do the converting along > with DATE, MONTH and YEAR? > > Thank you for reading and replying! > > --Roland You may try the date/time routines that appear in my Flibs project - http://flibs.sf.net. Nothing specific to timezones or zenith angles, but they may help in the conversion of date and time. Regards, Arjen
From: robin on 20 Jun 2010 10:48 qquito wrote in message <9e8f42b6-d58f-4659-b20c-ef21a4e876ad(a)c10g2000yqi.googlegroups.com>... >Dear Everyone: > >From time to time, I need to call a routine to compute the solar >zenith angle and solar azimuth angle, and I need to provide the YEAR, >MONTH and DATE and GMT as well as the LONGITUDE of the concerned >location. > >Around the end/beginning of a month and/or a year, the converting of >time involves the change of DATE, MONTH and the YEAR. It's pretty much >a nuisance! Built-in functions are available in PL/I for all date and time conversions. >Is there a routine or intrinsic procedure to do the converting along >with DATE, MONTH and YEAR? > >Thank you for reading and replying! > >--Roland
From: Arjan on 20 Jun 2010 13:56 > From time to time, I need to call a routine to compute the solar > zenith angle and solar azimuth angle, and I need to provide the YEAR, > MONTH and DATE and GMT as well as the LONGITUDE of the concerned > location. You can use my routines for solar angles (plus the ones for date/ time). Send me an e-mail at arjan [dot] van [dot] dijk [at] rivm [dot] nl. Regards, Arjan
From: Peter Flass on 20 Jun 2010 14:28
robin wrote: > qquito wrote in message <9e8f42b6-d58f-4659-b20c-ef21a4e876ad(a)c10g2000yqi.googlegroups.com>... >> Dear Everyone: >> >>From time to time, I need to call a routine to compute the solar >> zenith angle and solar azimuth angle, and I need to provide the YEAR, >> MONTH and DATE and GMT as well as the LONGITUDE of the concerned >> location. >> >> Around the end/beginning of a month and/or a year, the converting of >> time involves the change of DATE, MONTH and the YEAR. It's pretty much >> a nuisance! > > > Built-in functions are available in PL/I for all date and time conversions. > >> Is there a routine or intrinsic procedure to do the converting along >> with DATE, MONTH and YEAR? >> >> Thank you for reading and replying! >> Converting Y-M-D to something like Lilian format will ease at least a little of this pain. Enterprise PL/I has the SECS() builtin, or I just posted code to do this at: http://home.roadrunner.com/~pflass/PLI/code/secs.pli Other than that I can't help. |