Very good Bambang! That's a Very good question. If you ever want to improve your skills to express your ideas orally, let me know by visiting my tutor link. Link: https: //www.italki.com/teacher/3626684

"I don't realise that time is so quick, maybe we can continue this meeting tomorrow" - again this works as communication, but there are one or two improvements you can make. You need to use the past tense of 'do', because now you do know about the time - and we often use the verb 'go' time - therefore "I didn't realise that the time went so quickly, maybe we can continue this meeting tomorrow." There is a fixed expression that native speakers use which you may hear "Time has flown by! Maybe we can continue the meeting tomorrow."

I didn't realise how fast time was passing, maybe we can continue this meeting(discussion) tomorrow?