# GTFS Timetables Complete vs For Realtime update frequency

**URL:** <https://opendataforum.transport.nsw.gov.au/t/gtfs-timetables-complete-vs-for-realtime-update-frequency/4946>\
**Category:** Uncategorized\
**Created:** [January 28, 2025, 2:24am UTC](https://opendataforum.transport.nsw.gov.au/t/gtfs-timetables-complete-vs-for-realtime-update-frequency/4946 "2025-01-28T02:24:04Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![eric-ide](https://avatars.discourse-cdn.com/v4/letter/e/f9ae1b/32.png) [@eric-ide](https://opendataforum.transport.nsw.gov.au/u/eric-ide)\
**Post date:** [January 28, 2025, 2:24am UTC](https://opendataforum.transport.nsw.gov.au/t/gtfs-timetables-complete-vs-for-realtime-update-frequency/4946/1 "2025-01-28T02:24:04Z")

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Hello,

What is the update frequency of the complete GTFS bundle v.s. the individual “For Realtime” files? The latest GTFS bundle data appears to lag behind the /sydneytrains “For Realtime” data. For example, the latest bundle doesn’t contain updates due to the T4 line trackwork this weekend: the trip “607M.1346.149.2.T.8.84182254” has a different service schedule in the complete bundle (where it commences on 20250126) compared to the For Realtime data (where it commences on 20250208).

Appreciate any information on this 🙂

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**Author:** ![balaji\_srm](https://avatars.discourse-cdn.com/v4/letter/b/cab0a1/32.png) [@balaji\_srm](https://opendataforum.transport.nsw.gov.au/u/balaji_srm)\
**Post date:** [January 28, 2025, 2:26am UTC](https://opendataforum.transport.nsw.gov.au/t/gtfs-timetables-complete-vs-for-realtime-update-frequency/4946/2 "2025-01-28T02:26:25Z")

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Hello Eric,  
Thanks for reaching out to Transport NSW. I will reach out to time table scheduling team and get back to you with updates.

Regards  
Balaji subramanium  
Open Data & Innovation

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**Author:** ![Marcie](https://avatars.discourse-cdn.com/v4/letter/m/a5b964/32.png) [@Marcie](https://opendataforum.transport.nsw.gov.au/u/Marcie)\
**Post date:** [February 5, 2025, 4:48am UTC](https://opendataforum.transport.nsw.gov.au/t/gtfs-timetables-complete-vs-for-realtime-update-frequency/4946/3 "2025-02-05T04:48:20Z")

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> [@eric-ide](#):
>
> e update frequency of the complete GTFS bundle v.s. the individual “For Realtime”

Hi @eric-ide, the complete GTFS bundle and the individual ‘for realtime’ bundles both update daily, over-night, AEST.

There may be exceptions where there unplanned service disruptions or major errors in the data - in these cases the complete bundle may be updated during the day.

Can you tell me the date modified of the complete bundle you were looking at?

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**Author:** ![eric-ide](https://avatars.discourse-cdn.com/v4/letter/e/f9ae1b/32.png) [@eric-ide](https://opendataforum.transport.nsw.gov.au/u/eric-ide)\
**Post date:** [February 10, 2025, 10:31am UTC](https://opendataforum.transport.nsw.gov.au/t/gtfs-timetables-complete-vs-for-realtime-update-frequency/4946/4 "2025-02-10T10:31:29Z")

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Hey @Marcie, thanks for the response. Unfortunately I don’t recall the date modified of the complete bundle, although the earliest date in calendar.txt was 20250126, so perhaps it was that date?

I think it’s also possible that the difference I observed (due to the T4 trackwork) was unplanned - perhaps the ‘for realtime’ bundles updated earlier in that case?