diff --git a/agents/meshcore.js b/agents/meshcore.js
index 1b8e583e..61f85282 100644
--- a/agents/meshcore.js
+++ b/agents/meshcore.js
@@ -1884,6 +1884,29 @@ function getSystemInformation(func) {
                     }
                 } catch (ex) { }
             }
+            if(!results.hardware.linux.LastBootUpTime) {
+                try {
+                    var child = require('child_process').execFile('/usr/bin/uptime', ['', '-s']); // must include blank value at begining for some reason?
+                    child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });
+                    child.stderr.on('data', function () { });
+                    child.waitExit();
+                    results.hardware.linux.LastBootUpTime = child.stdout.str.trim();
+                } catch (ex) { }
+            }
+        }
+        if(process.platform=='darwin'){
+            try {
+                var child = require('child_process').execFile('/usr/sbin/sysctl', ['', 'kern.boottime']); // must include blank value at begining for some reason?
+                child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });
+                child.stderr.on('data', function () { });
+                child.waitExit();
+                const timestampMatch = /\{ sec = (\d+), usec = \d+ \}/.exec(child.stdout.str.trim());
+                if(!results.hardware.darwin){
+                    results.hardware.darwin = { LastBootUpTime: parseInt(timestampMatch[1]) };
+                }else{
+                    results.hardware.darwin.LastBootUpTime = parseInt(timestampMatch[1]);
+                }
+            } catch (ex) { }
         }
         results.hardware.agentvers = process.versions;
         replaceSpacesWithUnderscoresRec(results);
diff --git a/views/default-mobile.handlebars b/views/default-mobile.handlebars
index 3fef615d..46d775ed 100644
--- a/views/default-mobile.handlebars
+++ b/views/default-mobile.handlebars
@@ -5858,7 +5858,33 @@
                         x += addDetailItem("Last Boot Up Time", date);
                     }
                 }
-
+                if(hardware.linux && hardware.linux.LastBootUpTime){
+                    var lastBootUpTime = new Date(hardware.linux.LastBootUpTime);
+                    var thedate = {
+                        year: lastBootUpTime.getFullYear(),
+                        month: lastBootUpTime.getMonth(),
+                        day: lastBootUpTime.getDate(),
+                        hours: lastBootUpTime.getHours(),
+                        minutes: lastBootUpTime.getMinutes(),
+                        seconds: lastBootUpTime.getSeconds()
+                    };
+                    const date = printDateTime(new Date(thedate.year, thedate.month, thedate.day, thedate.hours, thedate.minutes, thedate.seconds));
+                    x += addDetailItem("Last Boot Up Time", date);
+                }
+                if(hardware.darwin && hardware.darwin.LastBootUpTime){
+                    var lastBootUpTime = new Date(hardware.darwin.LastBootUpTime * 1000); // must times by 1000 even tho timestamp is correct?
+                    var thedate = {
+                        year: lastBootUpTime.getFullYear(),
+                        month: lastBootUpTime.getMonth(),
+                        day: lastBootUpTime.getDate(),
+                        hours: lastBootUpTime.getHours(),
+                        minutes: lastBootUpTime.getMinutes(),
+                        seconds: lastBootUpTime.getSeconds()
+                    };
+                    const date = printDateTime(new Date(thedate.year, thedate.month, thedate.day, thedate.hours, thedate.minutes, thedate.seconds));
+                    x += addDetailItem("Last Boot Up Time", date);
+                }
+                     
                 // Windows Security Central
                 if (node.wsc) {
                     var y = [];
diff --git a/views/default.handlebars b/views/default.handlebars
index fd4b5271..a5fc8d42 100644
--- a/views/default.handlebars
+++ b/views/default.handlebars
@@ -11663,6 +11663,32 @@
                         x += addDetailItem("Last Boot Up Time", date);
                     }
                 }
+                if(hardware.linux && hardware.linux.LastBootUpTime){
+                    var lastBootUpTime = new Date(hardware.linux.LastBootUpTime);
+                    var thedate = {
+                        year: lastBootUpTime.getFullYear(),
+                        month: lastBootUpTime.getMonth(),
+                        day: lastBootUpTime.getDate(),
+                        hours: lastBootUpTime.getHours(),
+                        minutes: lastBootUpTime.getMinutes(),
+                        seconds: lastBootUpTime.getSeconds()
+                    };
+                    const date = printDateTime(new Date(thedate.year, thedate.month, thedate.day, thedate.hours, thedate.minutes, thedate.seconds));
+                    x += addDetailItem("Last Boot Up Time", date);
+                }
+                if(hardware.darwin && hardware.darwin.LastBootUpTime){
+                    var lastBootUpTime = new Date(hardware.darwin.LastBootUpTime * 1000); // must times by 1000 even tho timestamp is correct?
+                    var thedate = {
+                        year: lastBootUpTime.getFullYear(),
+                        month: lastBootUpTime.getMonth(),
+                        day: lastBootUpTime.getDate(),
+                        hours: lastBootUpTime.getHours(),
+                        minutes: lastBootUpTime.getMinutes(),
+                        seconds: lastBootUpTime.getSeconds()
+                    };
+                    const date = printDateTime(new Date(thedate.year, thedate.month, thedate.day, thedate.hours, thedate.minutes, thedate.seconds));
+                    x += addDetailItem("Last Boot Up Time", date);
+                }
                 if (x != '') { sections.push({ name: "Operating System", html: x, img: 'software64.png'}); }
             }