Returns SMF\TimeInterval objects from SMF\Time::diff()

Signed-off-by: Jon Stovell <[email protected]>

Sources/Time.php

@@ -439,6 +439,18 @@ public function __isset(string $prop): bool
 		}
 	}
 
+	/**
+	 * Like \DateTime::diff(), but returns a TimeInterval object.
+	 *
+	 * @param \DateTimeInterface $target The date to compare to.
+	 * @param bool $absolute Whether to force the interval to be positive.
+	 * @return TimeInterval The difference between the two dates.
+	 */
+	public function diff(\DateTimeInterface $target, bool $absolute = false): TimeInterval
+	{
+		return TimeInterval::createFromDateInterval(parent::diff($target, $absolute));
+	}
+
 	/**
 	 * Like DateTime::format(), except that it can accept either DateTime format
 	 * specifiers or strftime format specifiers (but not both at once).