tf_current_start/3—obtain the start time of the active interval of a time frame at a specified time

The syntax for tf_current_start/3 is as follows:

tf_current_start($TIMEFRAME,$TIME,$START)
$START=tf_current_start($TIMEFRAME,$TIME)

tf_current_start/3 arguments

Argument	Mode	Type	Description
`$TIMEFRAME`	Input	OBJECT	Specifies the time frame object
`$TIME`	Input	INTEGER	Specifies the time for the active interval
`$START`	Output	INTEGER	Start time of active interval at given time

Use the tf_current_start/3 to obtain the start time of the active interval at $TIME, of time frame $TIMEFRAME in $START.

A 0 value is returned if the indicated time frame is not active at the given time.

$START = tf_current_start($TF,$TM);

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