Binary option broker with 24h bet

Hi,
I have 3 binary option accounts but none of them offer the option to bet up or down on the next 24H.
I’m not interested in the next 12H or the next 48H i only want 24H.
I have an account with www.optiontrade.com www.beeoptions.com and www.cedarfinance.com

So what binary option broker offer 24H ?
It would be great if it also offer demo account because i don’t want to go real imediatly (i’m not that crazy).

Try nadex.com

Has a demo, many time frames.
Regulated too!

You can try email them to ask them to add it into their trading types. Hopefully it works.

You might want to look at Binary.com. They are bit different from many of the run of the mill brokers but are quite flexible when it comes to timeframes.