Hi all,

I have a load of timed data (from a phone bill) in the format: mm[m]:ss[s] (forgive me if I havn't put that correctly). The format sort of changes depending on the duration though, for example:
13m 23s
2m 4s
or
22m 3s etc.

I feel like this is a deliberate attempt by my provider to make it as difficult as possible to calculate my total usage (as they don't provide a total themselves) to prevent me from questioning my very hefty bill !

Anyway I was wondering if there was a formula that I could use to convert this data into either metric format or indeed just a standard time format (mm:ss).

Thanks

JFT