I had the exact same issue when displaying a bar chart with time as the X axes. Inside your xAxes you need to add an additional configuration 

13 Apr 2018 Real-time Chart in JavaScript with ChartJS and Hamoni Sync options specify the type of chart we want to render, in this case, a bar chart. This repository contains a set of native AngularJS directives for Chart.js. .chart- bar. chart-data : series data; chart-labels : x axis labels; chart-options (default:  27 Jan 2020 Google bar charts are rendered in the browser using SVG or VML, whichever is src="https://www.gstatic.com/charts/loader.js">