# Born January 1, 1995 — Hijri & All Calendars — Hijri Age Calculator

> January 1, 1995 in the Hijri calendar is 29 Rajab 1415 AH. See the full 8-calendar conversion including Hebrew (5755 Tevet 29) and Persian (1373 Dey 11).

- **Answer:** 1 Jan 1995 = 29 Rajab 1415 AH
- **Category:** Date & Time
- **Interactive calculator:** https://youcalc.com/en/date-time/multi-calendar-age/born-in-1995-hijri-date/
- **Price:** Free, no sign-up required
- **Full calculator:** [Hijri Age Calculator](https://youcalc.com/en/date-time/multi-calendar-age/)
- **Pre-filled inputs:** `md=convert&sc=gregorian&by=1995&bm=1&bd=1`

| Metric | Value |
| --- | --- |
| Gregorian | 1995-01-01 |
| Hijri (Islamic) | 1415-07-29 |
| Persian (Solar Hijri) | 1373-10-11 |
| Julian | 1994-12-19 |
| Hebrew | 5755 Tevet 29 |


## Overview

January 1, 1995 is the 29th of Rajab 1415 in the Hijri calendar — landing near the end of a sacred month. The Persian Solar Hijri calendar places this date on 11 Dey 1373. If you were born on this date and want your current age in Hijri years, switch the calculator to "Age" mode and enter today's date as the reference; the Hijri conversion of your birth date shown here will remain accurate regardless of when you check.

## Method

Every date is reduced to a Julian Day Number (JDN), a continuous integer count of days since a fixed epoch, and every output is derived from that single pivot. The Gregorian, Julian and tabular Islamic conversions are hand-rolled from the standard algorithms (Fourmilab / US Naval Observatory): the Gregorian and Julian use the classic civil-date formulas, and the tabular Hijri uses the 30-year cycle with 11 leap years and the leap rule ((year × 11) + 14) mod 30 < 11, anchored to the epoch JDN 1948439.5 (1 Muharram AH 1 = Friday 16 July 622 CE in the Julian calendar). The Hebrew, Persian, Indian (Saka), Ethiopian and Chinese calendars are read through Intl.DateTimeFormat's ICU calendars at the civil noon of each JDN, which yields an exact year and day; the total days lived is simply the difference of the two JDNs, so it is identical across calendars. Age in years is computed by counting completed calendar-year anniversaries up to the as-of date, clamping to the last valid day when a birthday lands on a date that does not exist that year (such as 29 February). The Hijri-drift figure compares the mean tabular Hijri year (10631 ÷ 30 ≈ 354.367 days) with the mean Gregorian year (365.2425 days), a deficit of about 10.876 days per year, and reports the approximate extra Hijri years your age accumulates. "Today" is computed at local civil midnight in your time zone, after the page mounts, so the default as-of date is correct wherever you are without baking a build-time date into the page.

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## Sources

- https://aa.usno.navy.mil/faq/islamic
- https://www.fourmilab.ch/documents/calendar/
- https://en.wikipedia.org/wiki/Tabular_Islamic_calendar

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