getSunrise() Function

FlowState , thanks very much!

...a small letter with a big impact 

I haven't tried testing the feature on a real Edge device - I’m still coding....

Right now I'm trying to use info.currentLocation primary. If null, I'll try observationLocation, if this is also null, I'll show "GPS?".

But I'm thinking about storing the last used activity location to use it when turning on the device if GPS is not yet available.
(When cycling, you're usually in the same place the next day...)

What do you think?

How far can you ride in an hour or two?  Enough that sunrise/set can vary a bit (maybe only seconds), but what if you cross a time zone?  If it's an activity that uses GPS, I'd use that if it's got a usable accuracy (different than being null).  If your aren't using GPS, you are likely in one place (a stationary bike).

What I'd probably do is to save the last good position to Storage and use that if something is odd when you try to get a new one (null or poor accuracy)

There is a new problem in my SunEvent code:

If on the Edge device Weather.getCurrentConditions() is available, all works fins.

But if getCurrentConditions() is not available yet, the datafield crashes.

So I thought, I check for getCurrentConditions().observationTime = null.

But that does not work either:

        if ( Toybox has :Weather ) {
            var curpos = null;
            var todayD;
            curpos = info.currentLocation;
            if ( Weather.getCurrentConditions().observationTime != null ) {
                todayD = Weather.getCurrentConditions().observationTime;
            }    
        

If "getCurrentConditions()" are not available yet, it throws an Error in line 5:   if() - line

Error: Unexpected Type Error
Details: Failed invoking <symbol>

How can I check, if "getCurrentConditions().observationTime" delivers a valid moment?

Or how can I build a moment for today whitout using Weather?

if (Weather has :getCurrentConditions)

In addition to a has check for Weather, you want to check

Weather.getCurrentConditions()

isn't null before you try to get obersvationTime

jim_m_58 , Thank you - this works now without crash.

            if ( Weather.getCurrentConditions() != null ) {
                if ( Weather.getCurrentConditions().observationTime != null ) {
                    todayD = Weather.getCurrentConditions().observationTime;
                    weatherFlag = true;
                }    
            }    

            if ( weatherFlag == true ) {       
            // Calculate SunEvents
            //............
            //............

But to work SunEvents you have to wait until the Edge receives weather data. And that can take more than 5 minutes... - especially on Edge x30 devices.

Therefore I'm wondering:
Is there no way to create a Time.Moment for "Now"?
Because date and time I will have immediately after switching on the device..

Is this the only way to create a Moment?

var options = {
    :year   => 2003,    // use variables for all options?
    :month  => 5,
    :day    => 16,
    :hour   => 6    
};
var todayD = Gregorian.moment(options);

I'm not sure I understand your question. More precisely: what do you try to achieve?