Marc, I'm really sorry, we aren't able to get on the phone to offer support.

I hope our unsubscribe instructions are clear enough that you'll be able to follow them and remove the 100's of duplicates.

Not currently. ShulCloud (a commercial software system) allows this level of flexibility. CiviShul (open source) might also allow this customization.

Hi Steven, thanks for sending the screen shots. It looks like you're using different Havdalah options for Skokie, IL 60076.

In the web browser screenshot, you've picked the Havdalah tzeit hakocahvim option (when the sun is 8.5 degrees below the horizon). You can see this because it says "Havdalah" but no fixed number of minutes in parentheses after.

In the PDF view, you've selected the Havdalah fixed 42 minutes option. You can see this because it says "Havdalah (42 min)".

If you choose the same Havdalah setting for both, you will see consistent times.

Hi, thanks for using Hebcal.

Yom HaShoah is held on the 27th of Nisan (April/May), unless the 27th would be adjacent to Shabbat, in which case the date is shifted by a day

Hi, thanks for using Hebcal, and sorry to hear you're having trouble with your yahrzeit calendar on iPhone.

Could you send us the Yahrzeit calendar subscription URL for debugging via private message? We'd love to investigate further on our server-side to see what's causing the problem.

To remove the Yahrzeit calendar completely, you can follow these instructions:

https://www.hebcal.com/home/221/ios-iphone-ipad-delete

Hi, thanks for using Hebcal.

You should be able to do this using our Jewish Calendar API by setting the start and end parameters to be today's date in YYYY-MM-DD format, and setting maj=on for only major holidays. Then, you'll need to see if items is empty - and if it's not, check to see if the object inside contains yomtov: true.

For example, here's the second day of Pesach in the Diaspora:

http://hebcal.com/hebcal?cfg=json&v=1&maj=on&leyning=off&start=2021-03-29&end=2021-03-29

{
  "title": "Hebcal Diaspora March 2021",
  "date": "2021-02-08T00:07:43.224Z",
  "location": {
    "geo": "none"
  },
  "items": [
    {
      "title": "Pesach II",
      "date": "2021-03-29",
      "category": "holiday",
      "subcat": "major",
      "yomtov": true,
      "hebrew": "פסח יום ב׳",
      "link": "https://www.hebcal.com/holidays/pesach-2021?utm_source=js&utm_medium=api",
      "memo": "Passover, the Feast of Unleavened Bread. Also called Chag HaMatzot (the Festival of Matzah), it commemorates the Exodus and freedom of the Israelites from ancient Egypt"
    }
  ]

And here's an example of non-yomtov - Chol haMoed Sukkot

http://hebcal.com/hebcal?cfg=json&v=1&maj=on&leyning=off&start=2021-09-24&end=2021-09-24

{
  "title": "Hebcal Diaspora September 2021",
  "date": "2021-02-08T00:11:48.425Z",
  "location": {
    "geo": "none"
  },
  "items": [
    {
      "title": "Sukkot IV (CH''M)",
      "date": "2021-09-24",
      "category": "holiday",
      "subcat": "major",
      "hebrew": "סוכות יום ד׳ (חול המועד)",
      "link": "https://www.hebcal.com/holidays/sukkot-2021?utm_source=js&utm_medium=api",
      "memo": "Feast of Booths"
    }
  ]
}

If you pick a day that has no major holidays, you'll get an empty items array:

http://hebcal.com/hebcal?cfg=json&v=1&maj=on&leyning=off&start=2021-06-01&end=2021-06-01

{
  "title": "Hebcal Diaspora 2021",
  "date": "2021-02-08T00:13:45.611Z",
  "location": {
    "geo": "none"
  },
  "items": []
}

Hi Nathan, thanks for using Hebcal and thanks for your message!

Differences of 2 minutes are fully expected and are not considered a bug. Please read this detailed post for more details:

https://www.hebcal.com/home/94/how-accurate-are-candle-lighting-times

Hi, thanks for using Hebcal!

Unfortunately we cannot provide an Israeli triennial cycle because we do not have a detailed reference with the aliyot by aliyot breakdown. Hebcal uses the CJLS Triennial system which only works on the Diaspora schedule.

Can you share what source your minyan/congregation/synagogue uses for Israel Triennial?

If you just look for category matching candles or havdalah and don't check the date, then you'll also include candle-lighting and havdalah events for major holidays like Pesach.

For example, here's what the output will look like for the week leading up to Pesach

https://www.hebcal.com/shabbat?city=Jerusalem&cfg=json&gy=2021&gm=3&gd=24

Hi, thanks for using Hebcal!

1) Is it constant that in set 0 it is candle lighting and in set 2 it is Shabbat departure?

No. When there are other holidays such as Rosh Chodesh or Pesach or Purim, these will also be present in the items array.

For Shabbat candle-lighting, you must loop through items array, looking for an item that has category == candles and a date that is on Friday.

For Havdalah, you must loop through items array, looking for an item that has category == havdalah and a date that is on Saturday.

2) Is it regular that I access the link https://www.hebcal.com/shabbat?cfg=json&geo=city&city=IL-Jerusalem so he will show me the details of the upcoming Shabbat that week that I access the link?

Yes, that URL will work correctly every week, regardless of when you access it during the week. On Sunday at 00:00 (midnight) it will refresh to the new week's events.