julian v1.06  

Calculate Julian and date information. The algorithms used by this program were derived from the HP67 calculator standard pack program for calculating Julian days and have been adapted for use on the Psion.

Julian is included in MenuS5

Julian dates   

Date information is valid from 19000301 till 21000228 but as these years are not leap years the week and day values will not be correct so input is limited to 1901 to 2099. The program allows input of valid and some invalid dates and converts the values to the nearest real date and evaluates the difference between entered dates and today. EG. 20000231 will be allowed but converts to the real date 20000302.


Week 1 is calculated as starting from the first Monday of the year. This means week 00 is sometimes known as week 53 of the previous year. Some years only have 52 weeks and some have 53.


The three digit day is calculated with one representing January 1st. Day 060 is March 1st for non leap years and February 29th for leap years.


for Series5/5mx/MC218/Geofox/Revo/Revo+/Series7/netBook    


This program is freeware. The author is Guy Sturges
Please feel free to use it and distribute it.