$sql = "select l.id as id, TIME_FORMAT(l.start, $sql_time_format) as start,
TIME_FORMAT(sec_to_time(time_to_sec(l.start) + time_to_sec(l.duration)), $sql_time_format) as finish,
TIME_FORMAT(l.duration, '%k:%i') as duration, p.name as project, t.name as task, l.comment, l.billable, l.invoice_id $client_field
from tt_log l
$left_joins
$sql = "select l.id as id, TIME_FORMAT(l.start, $sql_time_format) as start,
TIME_FORMAT(sec_to_time(time_to_sec(l.start) + time_to_sec(l.duration)), $sql_time_format) as finish,
TIME_FORMAT(l.duration, '%k:%i') as duration, p.name as project, t.name as task, l.comment, l.billable, l.invoice_id $client_field
from tt_log l
$left_joins