Date and time notation in Brazil

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Time

The 24-hour notation is always used in formal and informal writing; an "h" or ":" is used as separator and "min" denotes minutes in formal writing, e.g., 7h45min (formal) or 14:20 (informal). In formal writing full hours are written just with an "h", e.g., 6h (not 6h00min). It is less common, however, to speak in an 12-hour notation; one usually says 'sete da noite" (seven in the night) for 19h.