Add additional datetime field to carry timezone information

[mltbnz]

Suggestion:

To make the ride feature more versatile for international events I think it would be beneficial to introduce a new field for the datetime of the event that carries information about the timezone like f.ex. an ISO8601 String.

I was trying to add this in criticalmaps-ios but it was giving me a hard time 😆

[maltehuebner]

If you call the api like https://criticalmass.in/api/ride?year=2024&month=9&size=500&extended=true, the datetime property is an UTC timestamp and via the city property, you get access to timezone. Can you work with that data?

[mltbnz]

thanks. that should be helpful 😃 🎉

In the request you referenced I see a ride in lisbon with the timezone "Europe/Berlin".
Is this something someone creating the event is setting?

Besides that I see different timezones like for a ride in London f.ex. 👍

Details

{
    "city": {
        "description": "Massa Cr\u00edtica Lisboa | every last Friday of the month | 6pm | Marqu\u00eas de Pombal\r\nLisBora | every Tuesday | 8pm | Saldanha",
        "id": 748,
        "latitude": 38.725977097001,
        "longitude": -9.1505663398857,
        "main_slug": {
            "id": 10356,
            "slug": "lisboa"
        },
        "name": "Lisboa",
        "slugs": [
            {
                "id": 10356,
                "slug": "lisboa"
            }
        ],
        "timezone": "Europe/Berlin",
        "title": "Lisboa"
    },
    "cycle": {
        "day_of_week": 2,
        "latitude": 38.733125369076,
        "location": "Monumento ao Duque da Saldenha",
        "longitude": -9.144852811005,
        "week_of_month": 4
    },
    "date_time": 1727204400,
    "enabled": true,
    "id": 20211,
    "latitude": 38.733125369076,
    "location": "Monumento ao Duque da Saldenha",
    "longitude": -9.144852811005,
    "social_network_profiles": [],
    "title": "Lisboa 24.09.2024"
}

[mltbnz]

Closing this since using the extended response seems to solve the issue

For reference

criticalmaps/criticalmaps-ios#511