Offline appOfficial Zeyto
Hijri Gregorian Converter and Working Days Calculator with Notice Period Dates
An offline app for HR staff, PROs, property managers and anyone who counts notice periods and deadlines.
Count the working days to a deadline.

At a glance
- FormatOffline app, opens in your browser
- DeliveryInstant download
- In the box2 files, 23 KB
- Works withGoogle Chrome, Microsoft Edge or another current browser
- OfflineRuns offline in your browser
- Made forUAE businesses
How it works
- 1BuyPay on Stripe’s secure page.
- 2DownloadYour order page opens at once with a secure link.
- 3Open and useUnzip it and open index.html in your browser.
See it first
Look before you pay: screenshots, a short walkthrough and a live demo you can click through.
Hijri / Gregorian, with the example data
Try it now
Click through the real app. No download, no sign-up.
Demo with fictional example data. Nothing you type is saved. Printing, export and backup are switched off in the demo; the full app has them.
What you get
- Hijri and Gregorian conversion with an adjustment setting
- Working days with your own weekend and holiday list
- Notice period and deadline calculator
- Hijri key dates estimates for a year
- JSON backup, holiday CSV import, example data and README
Files and sizes (2)
- hijri-gregorian-converter-and-working-days-calculator.zip19 KB
- README.txt3.4 KB
2 files, 23 KB in total. You download them from your order page after payment.
What it does not do
- Type the UAE public holidays each year, as none are built in.
- Real Hijri months can differ by a day.
- Your data stays in one browser on one device: no cloud sync, so export a backup.
- It does not know UAE public holidays: you enter them, because the authorities announce them each year.
After you buy
- Instant downloadYour order page opens right after payment with a secure link for each file. The link is emailed to you too.
- A fresh link any timeLinks last 48 hours. Enter your order reference and the email you paid with and we will send a new one.
- Help is one email awayWrite to support@zeyto.app with your order reference. The team answers every enquiry.
- Fix, replace or refundIf a file is damaged, will not open, or is materially different from its listing, tell us within 7 days of the sale and we will fix it, replace it or refund you.
Find my purchasesContact the Zeyto teamMarketplace terms
Full refund wording
Digital downloads (files, templates, skill packs, guides) are delivered straight away, so they are not refunded once downloaded. If a file is damaged, will not open, or is materially different from its listing, tell us within 7 days of the sale and we will fix it, replace it or refund you.
Applies to products sold by Zeyto itself. None of this takes away rights you have under UAE law.
About this product
Read the full description
Contracts, notices and deadlines are counted in days, and which day counts depends on the weekend, the holidays and sometimes the Hijri calendar. Doing it by hand from a wall calendar leads to arguments about one day. This app does the counting in exact calendar days and shows its working.
On Hijri / Gregorian, type a date in either calendar. On Working days, choose your weekend and enter your own holiday list (one per line, ranges allowed, or import a CSV) and count working days between two dates or add working days to a date. On Notice and deadlines, set the start, the length and whether it counts calendar or working days. Hijri key dates lists Ramadan, Eid and similar estimates for a year that you can add to your holiday list and then correct to the announced dates.
What is inside:
- Hijri to Gregorian and back, with a plus or minus two day adjustment
- Date calculator: add or subtract days, weeks, months and years (month end handled)
- Working days with your weekend (Saturday and Sunday, Friday and Saturday, or Friday only) and your holiday list
- Notice period and deadline calculator, calendar or working days
- Hijri key dates estimates for a chosen year
- JSON backup, holiday CSV import, example data
Who it is for: HR staff, PROs, property managers and anyone who counts notice periods, grace periods and deadlines.
What it is not: It does not know UAE public holidays: you enter them, because the authorities announce them each year. The Hijri calendar used is the tabular (arithmetic) calendar, and real months start by moon sighting or an authority's calculation, so a result can be one or two days off. It is not legal advice. How a notice or deadline must be counted is set by your contract and the law, so ask your lawyer or the authority concerned.
How it differs: The annual-compliance-calendar-2027-uae lists dates for one year in Excel. This app is a calculator for any date and any period, not a list of deadlines.
Tested: 31 scripted browser checks. The tabular Hijri conversion matched the convertdate library on every day from 1900 to 2100. Against the Umm al-Qura tables (hijridate) over 55,991 days it differed by up to 2 days, and by 1 day or less on 95.1 percent of days (exactly equal on 35.8 percent), which is why the adjustment setting exists. Date arithmetic was compared with python-dateutil. It was tested in Chromium only. Firefox, Safari, a real phone and a real printer were not available for testing.
Questions
Who is it for?
What do I need to use it?
How do I get it?
What if the file is wrong?
Hijri Gregorian Converter and Working Days Calculator with Notice Period Dates: AED 49
Pay once, download at once.
Damaged, will not open or not as listed? Tell us within 7 days and we fix it, replace it or refund you.
Questions before you buy? Contact the Zeyto team. This is sold by Zeyto (Emeron Infospace FZE) itself, not by an independent seller. See the marketplace terms.
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