Hi, thanks for using Hebcal!

Unfortunately, once you subscribe to a holiday calendar feed, it is not possible to make changes to your settings. You will indeed need to unsubscribe and then resubscribe to get an updated holiday calendar.

For personal Yahrzeit calendars, see this article about making changes:

https://www.hebcal.com/home/632/how-to-make-changes-to-a-yahrzeit-anniversary-calendar

Hi, thanks for using Hebcal and thanks for your question. We don't currently offer a way to view/print a calendar that's primarily based on the Hebrew months. Because of our focus on integrating with other calendar apps (Apple, Google, Outlook, etc), Hebcal uses the Gregorian calendar as the primary view.

Our colleagues at Judaism 101 maintain a 3-month calendar in the format you describe:

https://jewfaq.org/current.shtml

Hi, thanks for using Hebcal and sorry to hear about this problem. We haven't seen anything quite like what you describe before, so our recommendation would be to delete/unsubscribe from Hebcal on your Apple device and start over.

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

Thanks for your message.

Rosh Hashanah is always observed on the first two days of Tishrei, the seventh month of the Hebrew calendar. Rosh Hashana for Hebrew Year 5784 begins at sundown on Friday, 15 September 2023 and ends at nightfall on Sunday, 17 September 2023.

The rules governing how the calendar works were developed during the rabbinic period and were fully codified by Maimonides in the Mishneh Torah in the 12th century. It would be a mistake to look only at the Bible and ignore the rabbinic sources or Rambam.

You can read more about the Hebrew calendar on Wikipedia:

https://en.wikipedia.org/wiki/Hebrew_calendar

Hi, thanks for using Hebcal.

We offer a tool that lets you print a year’s worth of Torah readings and Shabbat times for your location:

https://www.hebcal.com/home/shabbat/fridge

Our website is digital only, so you can print out calendars downloaded from Hebcal.

Yes, if you subscribe to annual email reminders, you will continue to receive reminders each year unless you opt-out or unsubscribe.

To add an additional email address to receive annual anniversary reminders, follow these instructions:

https://www.hebcal.com/home/4339/yahrzeit-anniversary-calendar-annual-email-reminders

The short answer is that if you are comfortable editing a URL, you can append something like ?ny=50 to the end of a download.hebcal.com URL to download 50 years at a time (the "ny" stands for "number of years").

1. Go to https://www.hebcal.com/hebcal

2. Fill out the form for your preferences (for example starting in 1973) and choose "Create Calendar"

3. Click the "Download" button and a modal will pop up

4. Select the "CSV" option

5. Right-click on the CSV download option and pick "Copy link address"

6. Paste the link address into your browser URL bar (but don't hit the enter button on your keyboard)

7. Append ?ny=50 to the end of the URL, then click Enter

The downloaded CSV file should cover the range 1973 - 2023.  Adjust the year in step 2 above per your needs.

Sound great! Shabbat shalom.

Hebcal Salesforce integration sounds great!

There is no paid API. You are welcome to use Hebcal freely.

Here is some guidance in how to give credit to Hebcal

https://www.hebcal.com/home/4289/giving-appropriate-credit-to-hebcal

Hi, thanks for using the Hebcal JavaScript library. 

Zmanim, Candle-lighting and Havdalah times are derived from sunset times, which are approximated from a location (latitude, longitude) and day of year. There is no way to include elevation in the Hebcal zmanim calculations because the underlying solar calculation algorithm doesn't use elevation.

The NOAA solar algorithm claims accuracy within 2 minutes except at extreme northern or southern latitudes. Adding elevation often changes the sunset calculation by 1 minute or less, so this is within the expected margin of error.