YOU SAID:
School ended today...
INTO JAPANESE
学校は本日終了.
BACK INTO ENGLISH
School is closed today.
INTO JAPANESE
学校は本日休業します。
BACK INTO ENGLISH
School will be closed today.
INTO JAPANESE
学校は今日は休館します。
BACK INTO ENGLISH
School is closed today.
INTO JAPANESE
学校は本日休業します。
BACK INTO ENGLISH
School will be closed today.
INTO JAPANESE
学校は今日は休館します。
it is unlikely that this phrase will ever reach equilibrium