What year is it according to persian calendar?
No context provided
When it was 2017, what  year was it according to the Persian calendar?
1395
No context provided
When it was 2016, what year was it according to the Persian calendar?
1394
No context provided
When it was 2015, what year was it according to the Persian calendar?
1393
Iranian calendars
https://en.wikipedia.org/wiki/Iranian%20calendars
The Iranian calendars or Iranian chronology (Persian: گاه‌شماری ایرانی‎, Gāh-Šomāri-ye Irāni) are a succession of calendars invented or used for over two millennia in Iran, also known as Persia. One of the longest chronological records in human history, the Iranian calendar has been modified time and again during its history to suit administrative, climatic, and religious purposes. The most influential face in laying the frameworks for the calendar and its precision was the 11 century Persian polymath, hakim Omar Khayyam. The modern Iranian calendar is currently the official calendar in Iran. It begins at the midnight nearest to the instant of the vernal equinox as determined by astronomic calculations for the Iran Standard Time meridian (52.5°E or UTC+03:30). It is, therefore, an observation-based calendar, unlike the Gregorian, which is rule-based.[1]
Iranian calendars
The Persian Calendars are a succession of calendars invented or used for over two millennia in Iran and one of the longest chronological records in human history. The year 2017 was equivalent to the year 1395 on the Persian Calendar, meaning that 2016 and 2015 were equivalent to 1394 and 1393 respectively. 