How to display time

leihao,the examples just like that:

lv_obj_t* label = lv_label_create(lv_scr_act(), NULL);

lv_label_set_text(label, "00:01:38");  // set text
lv_obj_set_pos(label, 400, 5);         // set position

lv_obj_set_style_local_bg_opa(label, LV_OBJ_PART_MAIN, LV_STATE_DEFAULT, LV_OPA_100);
lv_obj_set_style_local_text_color(label, LV_OBJ_PART_MAIN, LV_STATE_DEFAULT, LV_COLOR_RED);           // fg color
lv_obj_set_style_local_bg_color(label, LV_OBJ_PART_MAIN, LV_STATE_DEFAULT, LV_COLOR_BLUE);            // bg color
lv_obj_set_style_local_text_font(label, LV_OBJ_PART_MAIN, LV_STATE_DEFAULT, &lv_font_montserrat_22);  // font size(template:lv_font_montserrat_xx)