Backtrace recommends you install a browser extension to change the timezone that is displayed in our Web UI. Some users of Backtrace have reported that the *Change Timezone* extension for Chrome works well. https://chrome.google.com/webstore/detail/change-timezone-time-shif/nbofeaabhknfdcpoddmfckpokmncimpj?hl=en
A similar plugin for Firefox also exists: https://addons.mozilla.org/en-US/firefox/addon/change-timezone-time-shift/