Dropdown::showTimeStamp PHP Method

    static function showTimeStamp($myname, $options = array())
    {
        global $CFG_GLPI;
        $params['value'] = 0;
        $params['rand'] = mt_rand();
        $params['min'] = 0;
        $params['max'] = DAY_TIMESTAMP;
        $params['step'] = $CFG_GLPI["time_step"] * MINUTE_TIMESTAMP;
        $params['emptylabel'] = self::EMPTY_VALUE;
        $params['addfirstminutes'] = false;
        $params['toadd'] = array();
        $params['inhours'] = false;
        $params['display'] = true;
        $params['display_emptychoice'] = true;
        $params['width'] = '80%';
        if (is_array($options) && count($options)) {
            foreach ($options as $key => $val) {
                $params[$key] = $val;
            }
        }
        // Manage min :
        $params['min'] = floor($params['min'] / $params['step']) * $params['step'];
        if ($params['min'] == 0) {
            $params['min'] = $params['step'];
        }
        $params['max'] = max($params['value'], $params['max']);
        // Floor with MINUTE_TIMESTAMP for rounded purpose
        if (empty($params['value'])) {
            $params['value'] = 0;
        }
        if ($params['value'] < max($params['min'], 10 * MINUTE_TIMESTAMP) && $params['addfirstminutes']) {
            $params['value'] = floor($params['value'] / MINUTE_TIMESTAMP) * MINUTE_TIMESTAMP;
        } else {
            $params['value'] = floor($params['value'] / $params['step']) * $params['step'];
        }
        $values = array();
        if ($params['value']) {
            $values[$params['value']] = '';
        }
        if ($params['addfirstminutes']) {
            for ($i = MINUTE_TIMESTAMP; $i < max($params['min'], 10 * MINUTE_TIMESTAMP); $i += MINUTE_TIMESTAMP) {
                $values[$i] = '';
            }
        }
        for ($i = $params['min']; $i <= $params['max']; $i += $params['step']) {
            $values[$i] = '';
        }
        if (count($params['toadd'])) {
            foreach ($params['toadd'] as $key) {
                $values[$key] = '';
            }
            ksort($values);
        }
        foreach ($values as $i => $val) {
            if (empty($val)) {
                if ($params['inhours']) {
                    $day = 0;
                    $hour = floor($i / HOUR_TIMESTAMP);
                } else {
                    $day = floor($i / DAY_TIMESTAMP);
                    $hour = floor($i % DAY_TIMESTAMP / HOUR_TIMESTAMP);
                }
                $minute = floor($i % HOUR_TIMESTAMP / MINUTE_TIMESTAMP);
                if ($minute === '0') {
                    $minute = '00';
                }
                $values[$i] = '';
                if ($day > 0) {
                    if ($hour > 0 || $minute > 0) {
                        if ($minute < 10) {
                            $minute = '0' . $minute;
                        }
                        //TRANS: %1$d is the number of days, %2$d the number of hours,
                        //       %3$s the number of minutes : display 1 day 3h15
                        $values[$i] = sprintf(_n('%1$d day %2$dh%3$s', '%1$d days %2$dh%3$s', $day), $day, $hour, $minute);
                    } else {
                        $values[$i] = sprintf(_n('%d day', '%d days', $day), $day);
                    }
                } else {
                    if ($hour > 0 || $minute > 0) {
                        if ($minute < 10) {
                            $minute = '0' . $minute;
                        }
                        //TRANS: %1$d the number of hours, %2$s the number of minutes : display 3h15
                        $values[$i] = sprintf(__('%1$dh%2$s'), $hour, $minute);
                    }
                }
            }
        }
        return Dropdown::showFromArray($myname, $values, array('value' => $params['value'], 'display' => $params['display'], 'width' => $params['width'], 'display_emptychoice' => $params['display_emptychoice'], 'rand' => $params['rand'], 'emptylabel' => $params['emptylabel']));
    }

 /**
  * @see CommonDropdown::displaySpecificTypeField()
  **/
 function displaySpecificTypeField($ID, $field = array())
 {
     switch ($field['type']) {
         case 'actiontime':
             $toadd = array();
             for ($i = 9; $i <= 100; $i++) {
                 $toadd[] = $i * HOUR_TIMESTAMP;
             }
             Dropdown::showTimeStamp("actiontime", array('min' => 0, 'max' => 8 * HOUR_TIMESTAMP, 'value' => $this->fields["actiontime"], 'addfirstminutes' => true, 'inhours' => true, 'toadd' => $toadd));
             break;
     }
 }