gtfs.org | Source code for gtfs.org | Static Site Generator library

by MobilityData HTML Version: Current License: No License

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kandi X-RAY | gtfs.org Summary

gtfs.org is a HTML library typically used in Web Site, Static Site Generator, Jekyll applications. gtfs.org has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Source code for the General Transit Feed Specification Site. This site was built using GatsbyJS, a static-site generator which uses React and GraphQL.

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gtfs.org has a low active ecosystem.

It has 7 star(s) with 7 fork(s). There are 7 watchers for this library.

It had no major release in the last 6 months.

There are 9 open issues and 15 have been closed. On average issues are closed in 26 days. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of gtfs.org is current.

Quality

gtfs.org has no bugs reported.

Security

gtfs.org has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

gtfs.org does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

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gtfs.org releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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gtfs.org Key Features

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gtfs.org Examples and Code Snippets

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Community Discussions

Trending Discussions on gtfs.org

Add timezone to timestamp in PostgreSQL (not convert to this timezone)

QUESTION

Add timezone to timestamp in PostgreSQL (not convert to this timezone)

Asked 2018-Jul-31 at 14:11

I have 3 separate fields of types VARCHAR (contains timezone, for example 'Europe/Rome'), DATE and INTERVAL. And I want to combine them in query so that I get TIMESTAMP WITH TIME ZONE. The rule of making this value is:

Noon of specified date in given time zone, minus 12 hour and plus given interval (this -12 hours is needed to deal with DST).

Obviously adding/subtracting INTERVAL is not a problem. My problem is that I don't understand how to create "Noon of specified date in given time zone".

A quick example:

If I have timezone field 'Europe/Rome'
Date is 2018-03-24 (Date of DST switch in this timezone)
Interval is '1 hour'

The calculation should be like this:

Create noon of specified date: 2018-03-24 12:00:00 at 'Europe/Rome' time zone
Subtract INTERVAL '12 hours', result is 2018-03-24 01:00:00 at 'Europe/Rome' time zone (because of DST)
Add INTERVAL '1 hour', final result is 2018-03-24 02:00:00 at 'Europe/Rome' time zone.

How do I do point 1?

P.S. I cannot change schema of data. It comes from GTFS data that is loaded into postgres. In short, peculiarity of this schema is that it stores timezone, date and time intervals in 3 different tables: agency, calendar_dates and stop_times (well, timezone may be in other table, but that's not important for this question).

...

ANSWER

Answered 2018-Jul-31 at 14:11

Your examples are not syntactically correct, but your problem seems to be that PostgreSQL interprets the string literal with the date in it as timestamp with time zone.

But you have to go the other way: you want twelve noon as timestamp without timezone, then use AT TIME ZONE 'Europe/Rome' to get an absolute timestamp (called timestamp with time zone in PostgreSQL) that contains “noon as it is in Rome”, and then add the hour.

The displayed result will depend on your session time zone.

Let's use UTC so that we get the same result and write the above in SQL:

Source https://stackoverflow.com/questions/51610160

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

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