Someone says that Timing and Rhythm is not the same. So what are the differences between them ? Thanks for any reply.

You can be in time and out of rhythm. If you dance an intro, if this is Foxtrot, on 1 2. You will be dancing your first step Feather on 3 4. In time but out of rhythm. Also you will be out out phrase at the end of the eight bar phrasing. This attention to eight bar phrasing is even more so in Latin. Even the Jive is eight bar phrased along with the Samba Cha and Rumba. See Michael Wentink. Out of Africa.
From the book. Rhythm is used in a broad sense and usually refers to the accented beats of the music. One is heavy. Three is heavy but not as heavy as one. If you are doing a driving step on the first of the Feather 1 2 then you will also drive on the first of the Reverse Turn
1 2 and right throught to your Natural.

Quickstep. Thank you very much. But I think in this case, Rhythm has another sense. Dancing in rhythm and dancing in phase are two differencies.

In a letter to Vietnamese dancers, Irina Suvorov, a current Ballroom DanceSport coach,California, wrote : "Timing is the King of dancing. And don't mistake timing with rhythm. Timing is coordination of each action within body and between partners."

So what is rhythm as Irina Suvonov mentioned?

So, please, help me to clear my problem.

I think rhythm expresses more of the musicality and nuances of a dance. One could theoretically dance on time but not be especially rhymical. One dancer might feel and express the rhythm of a latin dance better than a smooth dance and vice versa even though he or she could dance "on time" to both styles.

Yes?