Contao\Date::floorToMinute PHP Method

    public static function floorToMinute($intTime = null)
    {
        if ($intTime === null) {
            $intTime = time();
        }
        return $intTime - $intTime % 60;
    }

 /**
  * Generate the module
  */
 protected function compile()
 {
     // Create the date object
     try {
         if (\Input::get('month')) {
             $this->Date = new \Date(\Input::get('month'), 'Ym');
         } elseif (\Input::get('day')) {
             $this->Date = new \Date(\Input::get('day'), 'Ymd');
         } else {
             $this->Date = new \Date();
         }
     } catch (\OutOfBoundsException $e) {
         throw new PageNotFoundException('Page not found');
     }
     $time = \Date::floorToMinute();
     // Find the boundaries
     $objMinMax = $this->Database->query("SELECT MIN(startTime) AS dateFrom, MAX(endTime) AS dateTo, MAX(repeatEnd) AS repeatUntil FROM tl_calendar_events WHERE pid IN(" . implode(',', array_map('intval', $this->cal_calendar)) . ")" . (!BE_USER_LOGGED_IN ? " AND (start='' OR start<='{$time}') AND (stop='' OR stop>'" . ($time + 60) . "') AND published='1'" : ""));
     /** @var FrontendTemplate|object $objTemplate */
     $objTemplate = new \FrontendTemplate($this->cal_ctemplate);
     // Store year and month
     $intYear = date('Y', $this->Date->tstamp);
     $intMonth = date('m', $this->Date->tstamp);
     $objTemplate->intYear = $intYear;
     $objTemplate->intMonth = $intMonth;
     // Previous month
     $prevMonth = $intMonth == 1 ? 12 : $intMonth - 1;
     $prevYear = $intMonth == 1 ? $intYear - 1 : $intYear;
     $lblPrevious = $GLOBALS['TL_LANG']['MONTHS'][$prevMonth - 1] . ' ' . $prevYear;
     $intPrevYm = intval($prevYear . str_pad($prevMonth, 2, 0, STR_PAD_LEFT));
     // Only generate a link if there are events (see #4160)
     if ($objMinMax->dateFrom !== null && $intPrevYm >= date('Ym', $objMinMax->dateFrom)) {
         $objTemplate->prevHref = $this->strUrl . '?month=' . $intPrevYm;
         $objTemplate->prevTitle = specialchars($lblPrevious);
         $objTemplate->prevLink = $GLOBALS['TL_LANG']['MSC']['cal_previous'] . ' ' . $lblPrevious;
         $objTemplate->prevLabel = $GLOBALS['TL_LANG']['MSC']['cal_previous'];
     }
     // Current month
     $objTemplate->current = $GLOBALS['TL_LANG']['MONTHS'][date('m', $this->Date->tstamp) - 1] . ' ' . date('Y', $this->Date->tstamp);
     // Next month
     $nextMonth = $intMonth == 12 ? 1 : $intMonth + 1;
     $nextYear = $intMonth == 12 ? $intYear + 1 : $intYear;
     $lblNext = $GLOBALS['TL_LANG']['MONTHS'][$nextMonth - 1] . ' ' . $nextYear;
     $intNextYm = $nextYear . str_pad($nextMonth, 2, 0, STR_PAD_LEFT);
     // Only generate a link if there are events (see #4160)
     if ($objMinMax->dateTo !== null && $intNextYm <= date('Ym', max($objMinMax->dateTo, $objMinMax->repeatUntil))) {
         $objTemplate->nextHref = $this->strUrl . '?month=' . $intNextYm;
         $objTemplate->nextTitle = specialchars($lblNext);
         $objTemplate->nextLink = $lblNext . ' ' . $GLOBALS['TL_LANG']['MSC']['cal_next'];
         $objTemplate->nextLabel = $GLOBALS['TL_LANG']['MSC']['cal_next'];
     }
     // Set the week start day
     if (!$this->cal_startDay) {
         $this->cal_startDay = 0;
     }
     $objTemplate->days = $this->compileDays();
     $objTemplate->weeks = $this->compileWeeks();
     $objTemplate->substr = $GLOBALS['TL_LANG']['MSC']['dayShortLength'];
     $this->Template->calendar = $objTemplate->parse();
 }