2021 The Generic Mapping Tools (GMT) for Geodesy
World time zones by country. All the observed world time zones are listed by country (or territory) in the table below. There are independent states with multiple time zones, and the record-holder is France with 12 zones, but 11 of them are used in overseas areas and only one in the country's mainland. Convert UTC to GMT time zone, calculate the time difference between Universal Time (UTC/GMT) and Greenwich Mean Time (GMT). GMT was established by international conference in 1884 as International Time. The earth is divided into 24 time zones, -11 to +12. Each time zone is 1 hour long, or 15° wide in longitude. Greenwich England is, by definition, in the middle of Time Zone 0, the prime meridian. UTC time is the local time at Greenwich England.
Dates: June – July 2021, multiple days
Times: Varies per day, see agenda below
Venue: This short course is offered in a virtual format only.
This course will cover the use of GMT 6 in geodesy using UNIX shell scripting. Lectures and exercises will be given to teach the basic conventions of using GMT, such as plotting grids, images, and vector data (points, lines, polygons). Labs will include both processing and mapping of various data sets relevant to geodesy.
Participants will apply to participate as we expect demand to exceed capacity. Decisions will be made on responses to prompts in the application. Priority will be given to applicants from UNAVCO member institutions and who need the training to conduct research in the next year. (Check to see if your institution is a member of the UNAVCO consortium.) Review of applications begins May 2; applicants will be notified of their status May 13.
For more information, visit the event page.
Image credit: GMT Developers
- Melissa Weber
- Posted: 3 May 2021
- Last updated: 3 May 2021
- Tags: short course
What is UTC or GMT Time?
Weather observations around the world (including surface, radar, and other observations) are always taken with respect to a standard time. By convention, the world's weather communities use a twenty four hour clock, similar to 'military' time based on the 0° longitude meridian, also known as the Greenwich meridian.
Prior to 1972, this time was called Greenwich Mean Time (GMT) but is now referred to as Coordinated Universal Time orUniversal Time Coordinated (UTC). It is a coordinated time scale, maintained by the Bureau International des Poids etMesures (BIPM). It is also known as 'Z time' or 'Zulu Time'.
To obtain your local time here in the United States, you need to subtract a certain number of hours from UTC dependingon how many time zones you are away from Greenwich (England). The table below shows the standard difference from UTC time to local time.
The switch to daylight saving time does not affect UTC. It refers to time on the zero or Greenwich meridian, which is notadjusted to reflect changes either to or from Daylight Saving Time. Amazon drive video storage.
However, you need to know what happens during daylight saving time in the United States. In short, the local time is advanced one hour during daylight saving time. As an example, the Eastern Time zone difference from UTC is -4 hours during daylight saving time rather than -5 hours as it is during standard time.
6 00 Utc
|Standard Time||Daylight Saving|
|AST - Atlantic, AK - Alaska time, HI - Hawaii time, *The previous day, %The next day|
Note: Credit given to NWS Southern Region Headquarters for the information above.
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