DAY Function

DAY(boolean-expression)

Returns the current day of the month (1–31).

• Pass TRUE → local time (system time zone, if configured).
• Pass FALSE → UTC (Coordinated Universal Time).

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Examples

REM Print both local and UTC day
PRINT "Local day: "; DAY(TRUE)
PRINT "UTC day:   "; DAY(FALSE)

REM Simple log timestamp
PRINT "Today is "; DAY(TRUE); "/"; MONTH(TRUE); "/"; YEAR(TRUE)

REM Check for month end
IF DAY(FALSE) = 31 THEN
    PRINT "Last day of a long month (UTC)"
ENDIF

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Notes

• Returns values in the range 1–31, depending on the current month.
• Local time behaviour depends on the OS time zone configuration. If no zone is configured, local and UTC values will be identical.
• Works in tandem with MONTH and YEAR for complete date values.
• Unlike some BASIC dialects, DAY does not return day-of-week; use WEEKDAY instead.

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See also: MONTH · YEAR · WEEKDAY