If you see a candle lighting time event on a Saturday night you can assume that it signifies both Havdalah and candle lighting for the holiday.

Yes, use these instructions:

https://www.hebcal.com/home/1138/outlook-com-windows-live-jewish-calendar-download

Aliyah day is on the 10th of Nissan but is commonly observed in Israel on the 7th of Cheshvan.

Hebcal is working as designed. If a holiday begins on motzei Shabbat, there will be a Candle lighting event, not a Havdalah event. Your application will need to E modified to handle this case.

If you're looking for general-purpose functions, there are a variety in each programming language. For example in JavaScript you might use this https://github.com/mourner/suncalc

And in PHP you might use this http://php.net/manual/en/function.date-sun-info.php

Thanks for the feedback and the suggestion!

Our voice integration with Alexa only offers converting from Gregorian dates to Hebrew. It does not yet offer the inverse conversion. We will need to investigate how well Alexa understands non-English words like Tishrei and Chesvhan.

Regarding language translation, there already appears to be at least one Alexa skill that can do multi-lingual translations:

https://www.alexaskillstore.com/Translator-for-Alexa/813

Follow these instructions if you no longer wish to subscribe to Hebcal in the native Calendar.app on macOS (formerly called iCal on Mac OS X).

(If you inadvertently merged the Hebcal calendar events with your personal calendar and you didn’t use the Subscription feature, use our delete Hebcal merged events instructions instead.)

Deleting a calendar subscription is easy, and it removes the entire calendar and all the events it contains from your computer.

1. Select the Hebcal calendar you want to delete in the calendar list on the left side of Calendar.app.
2. Choose Edit > Delete.

Here’s an example screenshot:

Hello, thank you for your message!

For Windows 10 mobile devices, we recommend exporting events from Hebcal.com to Outlook.com, then sync with your phone.

https://www.hebcal.com/home/1138/outlook-com-windows-live-jewish-calendar-download

hello, thanks for using Hebcal. We do not offer an app for Windows Mobile. Instead we suggest you subscribe to Hebcal on Outlook.com or Google Calendar, then sync with your mobile device.

https://www.hebcal.com/home/1138/outlook-com-windows-live-jewish-calendar-download

This looks like a caching issue on our end. We have adjusted our settings so the Shabbat Times javascript will be cached at most 24 hours in the future.