2400
Common industrial power
2400 refers to midnight in 24-hour time notation, the final minute of a calendar day.
Military and aviation contexts favor this format to avoid AM/PM confusion: The operation begins at 2400.
In competitive contexts, 2400 often denotes a perfect or maximum score, particularly on standardized tests like the former SAT: She got a 2400 on her SATs.
Twelve o'clock at night
- nightfallOnset of darkness
- nightDark hours daily
- darknessTotal absence of light
- late-nightOccurring after dark
Number lacking fractions
- evenUniform and level
- compositeMade of distinct parts
- divisibleAble to be separated
- dozenGroup of twelve
gross · hundreds · numeral · digit · quantity · count · figure · value
Sixty-minute spans
- dutyRequired moral task
- around-the-clockContinuous, without interruption
- surveillanceSystematic observation of subjects
- watchPortable timekeeping device
patrol · readiness · alert · guard · shift · rotation · continuous · operations
midnight
Twelve o'clock at night
late-night · after-hours · nocturnal · graveyard-shift · overnight
integer
Number lacking fractions
dozen · gross · hundreds · numeral · digit · quantity · count · figure · value · sum
hours
Sixty-minute spans
- dutyRequired moral task
- around-the-clockContinuous, without interruption
- surveillanceSystematic observation of subjects
watch · patrol · readiness · alert · guard · shift · rotation · continuous · operations · vigilance
modem
Digital-to-analog signal converter
- dial-upPhone-line internet connection
- serialOccurring in ordered succession
- connectionA joining or relation
terminal · telecommunications · transfer · protocol · handshake · vintage · computing
2400gigabit
Billion bits of data
broadband · fiber optic · high-speed internet · 300 · DSL