IsDST (Tag-based PE function)

Determine if a time expression is in a daylight saving time (DST) period on the local machine.

Syntax

IsDST(time)

Arguments

time

A time expression.

Returns

1 if the time is in a DST period and 0 otherwise.

Exceptions

If the argument is not a time value, an error condition is returned.

Example

IsDST('*')

IsDST('*-182.5d')

IsDST('t')

IsDST('timestringtag')