I want to change the template of timesheets.

Where we find (hr_timesheet_sheet/static/src/xml/timesheet.xml)

<th t-att-class="'oe_timesheet_weekly_date_head' + (moment().format('DD-MM-YYYY') === moment(date).format('DD-MM-YYYY') ? ' oe_timesheet_weekly_today' : '')">

I want to put

<th t-att-class="'oe_timesheet_weekly_date_head' + ((date.toString('ddd') === 'Sat') || (date.toString('ddd') === 'Sun') || (Date.compare(date, Date.today()) === 0) ? ' oe_timesheet_weekly_today' : '')">

But I can't get Odoo to show any change I make. So... does anyone have a working example of a template being changed?

I find too many people giving their 2 cents without actually seing things working. I've tried the "inherit_id" in the templates tag, I've tried the same in other places, I'ves tried with no inherit_id and I'm desperate!!! :)