Doesn't TTOC() include an argument to create an indexable key, like DTOC()?

? DTOC(DATE(), 1)
20020118

Update: Oops, nevermind, I had not noticed Sergey's answer!

>>CHRTRAN(TTOC(DATETIME()),"/: ","")
>
>I think, I want date+_+time without AM/PM (in 24h. range)
>>
>>>Hi everybody,
>>>
>>>I'm thinking about including datetime in the file name to identify files. How should I transform it?
>>>
>>>Thanks a lot in advance.