Founded in 1989, the Coretime (then trading as Raven Computing) originally provided bespoke PC Solutions to the business community. Clients have included several Airlines, Utility companies and larger professional practices.

Since 1991 it has focussed on producing software solutions aimed at professionals. Apart from its flagship Tempus Pro, other products of note include Breeze for Barristers and OIC Overdraft Interest Calculator.

Tempus Pro was first released in 1994 and has since evolved from its original Dos origins through the various 16 and 32 bit releases of the Windows™ version through to the present full browser based version. The Windows version continues to be marketed to SME's catering for site sizes up to 150 users.

In November 2001, the Company launched its full web version, Tempus Pro Online. Featuring all of benefits of the Windows program, with the additional flexibility of enabling users to record time and expenses, and manage projects off site, this product is already proving to be very popular with existing and new customers alike.

Unlike competitor products, where only time and expense entry can be access via the web, Tempus Pro Online is a full web product, allowing all data, reports and analysis to be accessed to permitted users over a standard browser without any additional software installed.