All of these CS6 trials will run fully for 30 (or possibly more) free days after initial . Note there is no separate trial download for Photoshop CS6.
If you specifically want CS6 then this is the page for the download : Download Creative Suite 6 applications. However the latest version is PS.
Adobe Photoshop CC License: Trial version Download ; Language: English ; Platform: windows. The best image editor with video editing and advanced.