If so, buy a lawyer a drink or get a free consult or pay for half an hour & find out if you can record all workplace hours surreptitiously.
If so, buy a discrete recorder (usb, pen, etc) & archive each workday using an autoeditor to cut out quiet spells. Make sure everything is timestamped. Back it up on the web. Preferably encrypted & offshore.
You are welcome in advance. Take down my username or bookmark this & let me know what happens! I'll still have this account in a few years probably.