Use the time interval to set the time units to be used in the Gantt form for the chosen timescale. The number you enter determines the number of time intervals in the period. For instance, if you choose 'Month' and set the number to '3', all time intervals in the Gantt chart will be three months.

You can set time intervals for the main scale (for example, 'Month' in the timescale 'Month/week') and for the subscale (for example, 'Week' in the timescale 'Month/week').

Use the Date format field for the timescale selected in the Gantt chart to specify how to display the date in the Gantt chart. You can specify your preferences for the main scale and the subscale. If, for example, you select the timescale 'Week / Day', you would set the date format for the weeks for the main scale, and then set the date format for the days for the subscale. You can use parameters to fill in certain values automatically, and you can use free text.

Parameters

Year
yy	Year with two positions: 12, 13, etcetera.
yyyy	Year with four positions: 2012, 2013, etcetera.

Month
m	Month number: 1, 2, etcetera.
mm	Month number with leading zero to fill two positions: 08, 09, 10, etcetera
mmm	Month name with three characters: Jan, Feb, etcetera.
mmmm	Full month name: January, February, etcetera.

Week
x	Week number: 1,2, etcetera
xx	Week number with leading zero to fill two positions: 08, 09, 10, etcetera

Day
d	Day number: 1, 2, etcetera.
dd	Day number with leading zero to fill two positions: 08, 09, 10, etcetera
ddd	Day name with two characters: Mo, Tu, etcetera.
dddd	Full day name: Monday, Tuesday, etcetera.
~	First letter of the day in lowercase: m, t, etcetera.
$	First letter of the day in uppercase: M, T, etcetera.

Free text

You can add text to the main scale or subscale in the Gantt chart, and you can combine text using the parameters. To make the text easier to read, you can add punctuation marks such as dashes and brackets. Enclose text between single quotes.

Example

In the Gantt chart, the timescale 'Week / Day' has been selected. Below you will see how the values in the Date format field of the main scale and the subscale are displayed in the Gantt chart.

Main scale

Date format field	Display in Gantt chart
'week' x (mmm yyyy)	week 1 (Jan 2013)

Subscale

Date format field	Display in Gantt chart
'week' x (d - m)	week 1 (4 - 1)