Meals on the first afternoon of Yom Tov

Hi,

We are taught not to eat meals in the later afternoon before Shabbat or Yom Tov, lest we ruin our appetite for the Shabbat/Yom Tov meal that night. One who is hungry may eat a meal in the later afternoon [before sunset] of Shabbat/Yom Tov preceding Yom Tov/Shabbat, because those are mitzvah meals themselves. However, one should not time his meal for then, intentionally.

(Rav Moshe Feinstein, Igrot Moshe Orach Chaim 3:68)

Have a great day,
Mordechai