Hi, once again thanks for the great API!

I use the API to update a calendar once a day using a simple microcontroller. By making a request once a day I hope to retreive the most actual data for that day (the earlier caching 'problem' seem to have resolved that).

This now does seem to work except for the saturdays, I've noticed that on the saturdays it will also include the previous friday candle lighting time.

Even when I specify the specific day to just the saturday like: gy=2022&gm=9&gd=10, I will still receive data from the day before. It only seems to do this on the saturdays.

Example URL: https://www.hebcal.com/shabbat?cfg=json&b=18&gy=2022&gm=9&gd=10

It feels like this is done on purpose, but I might be wrong. Is there any reason why this happens? And is there a way to overrule it?

Thanks for any help.

Hi, Thank you mradwin for your post about how to edit/update an existing calendar. I accessed the calendar, added the new dates I need to, then hit "update," and it generated a new 20-year list. Problem is that I don't see the changes reflected in the Google Calendar. And when I try to delete the calendar and re-download it, it still shows up as the original, unchanged version. Please advise. Thank you.

I use Hebcal for my synagogue's website in Israel now for several years, in CSV format (I use wordpress).  However, when downloading the Hebrew calendar today for the coming year, the Hebrew font doesn't work.  It comes out as gibberish characters. 
׳¨ײ¹׳׳©׳ ׳—׳•ײ¹׳“ײ¶׳©׳ ׳©ײ°׳׳‘ײ¸׳˜
Did I do something wrong?  I have lots of Hebrew fonts on my PC (since I live in Israel).

I am looking to create an electronic yahrzeit board that displays virtual "plaques" of loved ones during the month of their yahrzeit.  I want to use HebCal as the backend to drive that.  I would also like to integrate the zmainim clock/calendar, the weekly parasha, and the day yomi schedule on the board.  Basically, I'm looking to build a stand-alone version of what www.digizman.com or www.beegeesystems.com offers without the subscriptions.  Can HebCal support this?  Has anyone done this already?

Hi all,

First of all thanks for this great API!!

I'm working on an application that sends out a request everyday to update the Jewish holidays on a calender. However I've noticed now 2 days in a row that it's using old data, even when I create a new request. I use this request:

https://www.hebcal.com/shabbat?cfg=json&b=18 (and a private geonameid)

I've put now cache control headers in my request with: cache-control: no-cache, or cache-control: no-cache, max-age=0. I've been playing around with the headers a little bit, but they all still result in receiving data from 2 days old. I know I can specify the date in the API request (or a HTTP header), but I'm using a simple device that doesn't know its current time and date and would make things pretty complicated, thus I was hoping anyone could help me out on how to properly get always fresh data!

I'm not sure whether I'm doing something wrong here, or if it's on the server side. The API docs: https://www.hebcal.com/home/197/shabbat-times-rest-api says it is able to handle cache-control.

Thanks for any help!

On August 29, 2022; I got a Yahrzeit reminder for 2023. Shouldn't it have been for the upcoming date next week in this year? All the other reminders were sent out a week before the date, not 53 weeks.

Hi, I'm using the Hebcal Converter in a spreadsheet. Is there a way to have it show Shabbos Chol Hamoed instead of the Sukkot VI (CH"M)?

Love the hebcal candle lighting at a glance calendar. Use it every year. But this year it is having trouble holding onto my ZIP code.  Worse, it is only showing 5782. The arrows at the bottom are not changing the year, either forward nor backward. Is it me, or are others also having this problem? What can we do? Need the calendar!