Can Syria Ceacefires be extended?

Will they may have achieved one due to  East Ghouta no thanks bloody minded stone walling by Putin but at least it got through.

http://www.aljazeera.com/news/2018/...r-30-day-syria-ceasefire-180224192352205.html

For the moment I can't even find the wording of the resolution on the UN web page (slackness IMHO) .  I'll understand the resolution and it's scope after I've read it.