Copy and paste the following into an Excel cell.

=INT((INT(NOW())+(17/24)-NOW())*24)&"
"&IF(INT((INT(NOW())+(17/24)-NOW())*24)=1,"hour","hours")&"
"&INT((((INT(NOW())+(17/24)-NOW())*24)-(INT((INT(NOW())+(17/24)-NOW())*24)))*60)&"
"&IF(INT((((INT(NOW())+(17/24)-NOW())*24)-(INT((INT(NOW())+(17/24)-NOW())*24)))*60)=1,"minute","minutes")&"
"&INT(((((INT(NOW())+(17/24)-NOW())*24)-(INT((INT(NOW())+(17/24)-NOW())*24)))*60-INT((((INT(NOW())+(17/24)-NOW())*24)-(INT((INT(NOW())+(17/24)-NOW())*24)))*60))*60)&"
"&IF(INT(((((INT(NOW())+(17/24)-NOW())*24)-(INT((INT(NOW())+(17/24)-NOW())*24)))*60-INT((((INT(NOW())+(17/24)-NOW())*24)-(INT((INT(NOW())+(17/24)-NOW())*24)))*60))*60)=1,"second","seconds")