The latest week is 17 to 21 April, the last week was the 27 to 31 March (the week before the Easter school holidays).
Yr wythnos diweddaraf yw 17 i 21 Ebrill, a’r wythnos flaenorol yw 27 i 31 Mawrth 2023 (yr wythnos cyn gwyliau ysgol y Pasg).