Date & Time

Handling dates and times in DWScript is centered around the TDateTime type, which is technically a Float where the integer part represents days since Dec 30, 1899, and the fractional part represents the time of day.

Core Functions

Function	Parameters	Description
`Now`		Current local date and time.
`Date`		Current local date only.
`Time`		Current local time only.
`UTCDateTime`		Current UTC date and time.
`UnixTime`	`[utc]`	Returns current or specific Unix timestamp (seconds).
`UnixTimeMSec`	`[utc]`	Returns Unix timestamp in milliseconds.
`EncodeDateTime`	`y, m, d, h, n, s, ms`	Creates TDateTime from components.
`DecodeDateTime`	`dt, var y, m, d, h, n, s, ms`	Extracts components from TDateTime.
`FormatDateTime`	`fmt, dt [, zone]`	Formats date using pattern.
`ISO8601ToDateTime`	`s`	Parses ISO8601 string.
`DateTimeToISO8601`	`dt`	Converts to ISO8601 string.
`DateTimeToRFC822`	`dt`	Converts to RFC 822 string (used in RSS/Email).
`IncYear / IncMonth / IncDay`	`dt, n`	Increment/Decrement date components.
`DayOfWeek`	`dt`	Returns 1 (Sunday) to 7 (Saturday).
`IsLeapYear`	`year`	Primality test.
`Sleep`	`msec`	Pauses execution for `msec` milliseconds.

Usage Example

var dt := EncodeDate(2026, 1, 12) + EncodeTime(12, 0, 0, 0);
PrintLn('Full: ' + FormatDateTime('yyyy-mm-dd hh:nn:ss', dt));
PrintLn('Formatted: ' + FormatDateTime('yyyy-mm-dd', dt));

var tomorrow := dt + 1.0;
PrintLn('Tomorrow: ' + FormatDateTime('yyyy-mm-dd hh:nn:ss', tomorrow));

Result

Full: 2026-01-12 12:00:00
Formatted: 2026-01-12
Tomorrow: 2026-01-13 12:00:00

Technical Note

Since TDateTime is a Float, you can perform arithmetic directly. For example, Now + 1.0 represents tomorrow at the same time, and Now + (1.0 / 24.0) represents one hour from now.

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