-B+e (to skip first or last annotation) not working with dates

[gd-a]

Hi there, never 2 without 3 (not sure this translate well in English)... anyway,

I'm trying to finish a code and I'm almost done apart from the first x annotation that bothers me.

I found in the doc the -B+e option, and ... it didn't work. After some trial the problem seems to be only for "month" annotation.

MWE :

gmt begin test png
gmt basemap -R2000-01-01T/2001-01-01T/-1/1 -JX5c -Bafg+e --FORMAT_DATE_MAP=o --FORMAT_TIME_PRIMARY_MAP=a 
gmt end show