persian_date: Persian dates

In calcal: Calendrical Calculations

Persian dates

Description

The modern Persian calendar was adopted in 1925 in Iran and in 1957 in Afghanistan. An alternative version of the calendar, using only arithmetic (rather than astronomical) calculations is available as the apersian calendar.

Usage

persian_date(year = integer(), month = integer(), day = integer())

apersian_date(year = integer(), month = integer(), day = integer())

as_persian(date)

as_apersian(date)

Arguments

year	Numeric vector of years
month	Numeric vector of months
day	Numeric vector of days
date	Vector of dates on some calendar

Value

A persian vector object

Examples

gregorian_date(2025, 5, 1:20) |>
  as_persian()

calcal documentation built on Feb. 25, 2026, 9:07 a.m.