Calling: Calendar_Util_Textual::monthNames('long');

Array
(
    [1] => January
    [2] => February
    [3] => March
    [4] => April
    [5] => May
    [6] => June
    [7] => July
    [8] => August
    [9] => September
    [10] => October
    [11] => November
    [12] => December
)

Calling: Calendar_Util_Textual::weekdayNames('two');

Array
(
    [0] => Su
    [1] => Mo
    [2] => Tu
    [3] => We
    [4] => Th
    [5] => Fr
    [6] => Sa
)

Creating: new Calendar_Day(date('Y'), date('n'), date('d'));

Previous month is: Fe
This month is: Mar
Next month is: April