Referring to [IATAtv YouTube][1] the first syllable is pronounced as a 'tem' not 'time'. Hence the word would sound like:

> Tem a tik

You can listen to it at [forvo][2] as well. 


  [1]: https://youtu.be/5hAqOTCGG3k
  [2]: https://forvo.com/word/timatic/