Сравните дату mysql
SELECT *
FROM players
WHERE DATE(us_reg_date) BETWEEN '2000-07-05' AND '2011-11-10'
Mobile Star
SELECT *
FROM players
WHERE DATE(us_reg_date) BETWEEN '2000-07-05' AND '2011-11-10'select from_unixtime(`your_timestamp`) as lastdt from `sessions`
WHERE from_unixtime(`your_timestamp`) >= NOW() - INTERVAL 15 MINUTE
ORDER BY your_timestamp DESC;