Just focus on the ~0D~0ADate: Fri, 16:57:43 GMT~0D~0A part buried in the receivedData. RC = tcall ~0A~0A301 Moved Permanently~0A~0AMoved Permanently~0AThe document has moved here.~0A~0A", open a socket connection to a web site Let me know what you discover.)įirst, create a JSL socket and connect to a web site: You can use internetOpen() for most HTTPS work.) (JSL sockets do NOT support SSL or HTTPS connections. (If there is a temporal discontinuity below, it's because this post was constructed over several hours.) (There is a JSL attachment, below, with a little bit more error checking than you see here.) This will be part of the header information in the web site's response. Rather than trying to make a system call through the JSL-DLL interface, I'm going to ask a web site what the current GMT time is.
If you collect and share data across time zones, GMT might be a good choice. Once you have that value, you can convert JMP date-time values from local time to GMT. This post is about calculating the -4 or -5 value, in a JSL script, without knowing what time zone your computer is in. GMT has an offset of zero EDT is GMT-4 and EST is GMT-5.
GMT has several other names: UTC is a compromise acronym for scientists and Zulu is a military designation (Z, for zero). You probably know your time zone as a three letter code like EST (Eastern Standard Time) or EDT (Eastern Daylight Time) or maybe GMT (Greenwich Mean Time). In terms of geography, GMT or WET, which share the same local time, should be the time zone of choice for France.Your computer's clock shows you time for your local time zone. CEST, France's Daylight Saving Time, refers to an even less suitable solar time, at 30° longitude, which runs close to Kyiv, Ukraine. CET is based on solar time at 15° eastern longitude, which runs along the border between Germany and Poland. Today, most of the European part of France uses a time zone that does not adequately reflect the solar time on its longitude. In 1978, after having advanced its standard time by 1 hour to Central European Time in 1940, France adopted today's UTC standard. However, rather than officially adopting GMT as its standard time, the country now proclaimed PMT-0:09:21 as the name of its standard time zone. In 1911, France turned its civil time back by precisely that amount to synchronize its clocks with GMT. It was based on solar time in Paris, so local time in France was Paris Mean Time (PMT), which was 9 minutes and 11 seconds ahead of GMT. However, France continued to use its own standard for several decades. Back then, GMT was based on solar time at the prime meridian that runs through Greenwich, United Kingdom. In 1884, the international community adopted Greenwich Mean Time (GMT) as the world's time standard. Of France's dependencies, only Saint Pierre and Miquelon uses Daylight Saving Time.
Time Zones Being Used in Dependencies of France Offset In the country's main part, Central European Time (CET) is used as standard time, while Central European Summer Time (CEST) is observed when DST is in force. Only the European part of France and the collectivity of Saint Pierre and Miquelon use Daylight Saving Time (DST). It will become active again after the next clock change as Daylight Saving Time begins or ends. The above time zone is used during other parts of the year. Time Zone Not Currently Being Observed in France Offset When Saint Pierre and Miquelon observes Daylight Saving Time, it even adds a 13th local time to the count. The remaining 11 time zones are added by France's dependencies ( France d’Outre-Mer). The main part of the country, France métropolitaine, which lies in central Europe and includes the capital Paris, spans only 1 time zone. With its 12 standard times, France currently holds the world record for the country with the most time zones, beating even the United States and Russia, which have 11 time zones each.
Time Zones Currently Being Used in France Offset