You can't buy time or save it, common idioms notwithstanding. You can only spend it.
Eric Zorn

You can't buy time or save it, regardless of common idioms to the contrary.  You can only spend it.
You can't buy time or save it, despite  common idioms to the contrary.  You can only spend it.
You can't buy time or save it, in spite of common idioms to the contrary.  You can only spend it.
You can't buy time or save it, although there are common idioms to the contrary.  You can only spend it.
You can't buy time or save it, even though there are common idioms to the contrary.  You can only spend it.