Thanks for your message! You can find the Omer calendar download/subscription feed here:

https://www.hebcal.com/ical/

We have also added a download button to that page to make it easier to download/subscribe to a calendar feed if you are already on the Omer page.

Hi, thanks for contacting Hebcal.

To calculate yahrzeit dates, please use our Yahrzeit + Anniversary Calendar page. You will note that if you enter 11-March-2005 you will get the Ashkenazic practice for 30 Adar I.

Thank you for posting a screenshot from our simple Hebcal Hebrew Date converter. The Hebrew Date Converter page does not follow the special rules for a yahrzeit.

If you want parshiyot for current Hebrew year, use &year=now&yt=H

Here is an excerpt from the documentation, note the meaning of the "yt" parameter

Date

Date range may be specified either using year or both start and end:

• year=now – “now” for current year, or 4-digit YYYY such as 2003
  • yt=G – Interpret year as Gregorian year (common era) – default
  • yt=H – Interpret year as Hebrew year (e.g. 5782)

For more details please read the APi documentation

https://www.hebcal.com/home/195/jewish-calendar-rest-api

We’re pleased to announce support for Comma Separated Values (CSV) file import in the Hebcal Yahrzeit + Anniversary calendar. You can now create a personal list of Yahrzeit (memorial) and Yizkor dates, Hebrew Birthdays and Anniversaries for 20+ years by importing a CSV file.

Read this article for more details

https://www.hebcal.com/home/4322/csv-import-for-yahrzeit-anniversary-calendar

thanks for your message. You are correct that Parashat Vayechi is not read during the Gregorian year 2024. This is not a bug. Parashat Vayechi is read once every Hebrew year but is not guaranteed to be read during every Gregorian year.

Note the dates that the parsha is read below, and you will see that although it is read once every Hebrew year, it is sometimes read twice in the same Gregorian year and not at all in the following Gregorian year.

• 5781 · 2 Jan 2021
• 5782 · 18 Dec 2021
• 5783 · 7 Jan 2023
• 5784 · 30 Dec 2023
• 5785 · 11 Jan 2025
• 5786 · 3 Jan 2026

• 5787 · 26 Dec 2026
• 5788 · 15 Jan 2028
• 5789 · 30 Dec 2028

Parashat Vezot Habracha is not read on Shabbat. Instead it is read during Simchat Torah.

Thanks for contacting Hebcal!

From within Flutter, you can use any of the Hebcal developer APIs

https://www.hebcal.com/home/developer-apis

Good luck!

Hi, thanks for using Hebcal!

The 2nd day of Tevet is expected to fall.on different Gregorian calendar dates. For example:

If you have a Yahrzeit occuring on that date, you should expect to see the anniversary sometimes in December and some years in January.

Hi, thanks for using Hebcal! Sorry to hear that you're having difficulty downloading.

Most users are able to successfully download by following our step-by-step instructions for importing Hebcal calendars into the following applications:

• Apple iPhone / iPad 
• Apple macOS
• Google Calendar
• Outlook for Windows

If after reviewing these instructions, you continue to experience difficulty, could you please post some screenshots with error messages so we can diagnose further?

Happy Chanukah!

Thanks for using Hebcal!

We offer several options for developers to customize zmanim by degrees or minutes. Currently both Havdalah and fast end times can be configured as degrees (defaulting to 8.5 and 7.083 respectively). These options are documented in the @hebcal/core README.

For regular users, unfortunately, we do not yet offer the ability to specify degrees on the Hebcal.com website. There's a toggle between 8.5 degrees for Havdalah (default) or user-specified minutes past sundown. The current website design is limited in this simplicity, which seems to work for the majority of users. At some point we'd like to add more configuration options to the website.

If you are a website user, what kind of settings would you like access to? Do you have an example application you've seen that could help to demonstrate the kind of user interface for setting these options that you could share a screenshot of?

Sorry to hear about your duplicate calendar events. It sounds like you may have subscribed to multiple Hebcal calendars in Google Calendar.

You can follow these instructions to unsubscribe/delete the extra calendars from your Google account

https://www.hebcal.com/home/4383/google-calendar-delete-hebcal