Use docker image Node 8.7 with Yarn 1.2.0

Dockerfile

@@ -1,5 +1,5 @@
 # DEV BUILD STEP
-FROM node:8.5-alpine as devBuild
+FROM node:8.7-alpine as devBuild
 WORKDIR /usr/src/app
 
 # Copy the source and build
@@ -9,7 +9,7 @@ RUN yarn run build
 
 # PROD BUILD STEP
 # Using latest LTS release of Node (comes with Yarn package manager by default)
-FROM node:8.5-alpine
+FROM node:8.7-alpine
 
 # Create an app directory on the container
 WORKDIR /usr/src/app

src/helpers/convertNumberToTimeAgo.js

@@ -1,7 +1,6 @@
 export default (number) => {
-  const date = new Date(number);
-  const now = new Date();
-  const timeAgo = now.valueOf() - date.valueOf();
+  const now = +new Date();
+  const timeAgo = now - number;
 
   const ONE_YEAR = 3.154e+10;
   const ONE_MONTH = 2.628e+9;