php - Mysql using only a time in date_sub or alternative -

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i have mysql field set "time", , check against time, using time well.

i have cron run every 10 minutes, clients can set reminder messages sent out every day @ time of day or so.

using following query not give me fields last 9 minutes:

select `id` `sms_reminders` (`option` = "weekdays" or `option_days` "%4%") , `time` < date_sub(now(), interval 9 minute)

however, giving me mixed results.

my time field set @ 09:50:00 (time of running query 09:53:00).

thanks.

make few changes in code use > instead of <


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