11 PM; 23:00
Used in 24-hour time notation; equivalent to 11 o'clock at night.
Tonight's program starts at 11 PM.
After 11 PM, the number of trains decreases.
Same time as ２３時, but expressed in 12-hour format with 午後 (PM).
Standard numeric notation for 11 PM; common in schedules and digital displays.
Kanji spelling; less common than the numeric form but used in formal or vertical writing.
Compound of 二十三 (にじゅうさん, twenty-three) and 時 (じ, hour), following standard Japanese number + counter formation.