The following saints are commemorated on March 27:
Alexander of Drizipara
Alexander of Pannonia
Alkeld
Amator of Guarda
Ananias the Prophet
Augusta of Treviso
Frans Faà di Bruno
Frowin of Engelberg
Gelasius of Armagh
John Damascene
John of Lycopolis
Lazarus
Lydia
Marotas
Matthew of Beauvais
Philetus
Romulus of Nîmes
Suairlech of Fore
William Tempier
Zanitas
March 27th 1975 was a Thursday.
March 27th 1958 was a Thursday.
March 27, 2003 was a Thursday.
The feast day of a saint can be any random date or it may fall on the commemoration day of some event of the saint's life, such as their date of death, the day of their canonization or other such event.
Easter doesn't fall on 27 Mar again until 2157.
Easter Sunday last fell on March 27th in the year 2005. Easter Sunday is due to fall on this date again in the year 2016.
The Feast of Francis of Assisi - October 4 - falls in Ordinary Time.
In the next 100 years, Easter falls on March 27 only once, in 2016.
Friday the 17th of March.
Saint Patrick's Day always falls on March 17. March 17, 2013 was on a Sunday.
No, it is not a movable feast. It is on March 17 every year.
Yes there is. However, at times a feast my be preempted if a more important feast, particularly of Our Lord, happens to fall on that day. For example, Sundays are generally reserved for Our Lord. If a saint's day happens to fall on Sunday, the Mass devoted to them will not be said but the regular Sunday Mass will be used instead.