The field experiment was conducted at Sids Agriculture Research Station in two planting dates (mid-May and mid-June) during 2021season to investigate the response of 23 new maize hybrids and four check hybrids  under two irrigation treatments; every12 days (normal irrigation) and every 24 days (water stress). A split split plot design with three replications was used, where the main plots occupied by two planting dates and the irrigation treatments were in sub-plot while 27 hybrids distributed randomly in the sub-sub-plots during seasons. Combined analysis revealed that mean grain yield of planting date at mid-June was significantly increased than at mid-May dates (22.4vs.16.6 ard/fed). Also, mean grain yield under normal irrigation 26.8 ard/fed was significant higher than under water stress 12.1 ard/fed (A grain yield reduction 55%). Total water amount used at first planting date (mid-May) was 2913 m³/fed under normal irrigation and 1622 m³/fed under water stress (water saving 44%). Mean while, total water amount at second planting date (mid-June) was 2647m³/fed under normal irrigation and 1453 m³/fed under water stress (water saving of 45%). Means of all crosses under normal irrigation were higher than under water stress for plant height (cm), ear height (cm) and grain yield (ard/fed), whereas the opposite obtained for days to 50% silking. Three single crosses, Nub72×Nub89 followed by Nub79×Nub89 and Nub79×Nub86 and one three-way cross SC24×Nub86 recorded the highest grain yield under normal irrigation and water stress and had the best values for water productivity (WP), yield response factor (Ky) and drought susceptibility index (DSI), indicated that hybrids had higher tolerance under water deficit.