Ideas
And another way to calculate it is to convert to Gregorian and then use a date difference website:
https://www.hebcal.com/converter?hd=19&hm=Tamuz&hy=5744&h2g=1
19th of Tamuz, 5744 = Thu, 19 July 1984
https://www.hebcal.com/converter?hd=24&hm=Tishrei&hy=5784&h2g=1
24th of Tishrei, 5784 = Mon, 9 October 2023
Then visit the Days Calculator: Days Between Two Dates calculator
From and including: Thursday, July 19, 1984
To and including: Monday, October 9, 2023
https://www.timeanddate.com/date/durationresult.html?m1=10&d1=09&y1=2023&m2=07&d2=19&y2=1984&ti=on
Result: 14,327 days
It is 14,327 days from the start date to the end date, end date included.
Or 39 years, 2 months, 21 days including the end date.
Or 470 months, 21 days including the end date.
There are 14,327 days between those two dates.
const {HDate} = require('@hebcal/core');
const hd1 = new HDate(19, 'Tamuz', 5744);
const hd2 = new HDate(24, 'Tishrei', 5784);
console.log(hd2.abs() - hd1.abs(1) + 1);
14327
Customer support service by UserEcho
And another way to calculate it is to convert to Gregorian and then use a date difference website:
https://www.hebcal.com/converter?hd=19&hm=Tamuz&hy=5744&h2g=1
19th of Tamuz, 5744 = Thu, 19 July 1984
https://www.hebcal.com/converter?hd=24&hm=Tishrei&hy=5784&h2g=1
24th of Tishrei, 5784 = Mon, 9 October 2023
Then visit the Days Calculator: Days Between Two Dates calculator
From and including: Thursday, July 19, 1984
To and including: Monday, October 9, 2023
https://www.timeanddate.com/date/durationresult.html?m1=10&d1=09&y1=2023&m2=07&d2=19&y2=1984&ti=on
Result: 14,327 days
It is 14,327 days from the start date to the end date, end date included.
Or 39 years, 2 months, 21 days including the end date.
Or 470 months, 21 days including the end date.