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Editorial Team
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Asked: 2026-06-17T04:32:29+00:00

Using Meteor, what would be an efficient way to keep a running clock (h:m:s)

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Using Meteor, what would be an efficient way to keep a running clock (h:m:s) on the client that displays the server’s time?

The JavaScript/PHP answers I’ve found typically involve getting the server time periodically and calculating the difference between that and the client.

What would that look like with Meteor?

UPDATE: A lot has changed since I originally posted this question. If you’re interested in a pre-built solution, I recommend taking a look at Meteor Timesync by @mizzao. Install it by running meteor add mizzao:timesync in your console.

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1 Answer

  1. Editorial Team

    David Greenspan gets the client time in this presentation on Spark around 14:30. I’ve modified this code slightly to get server side time:

    Javascript:

    if (Meteor.isClient) {
    Meteor.startup(function () {
        setInterval(function () {
            Meteor.call("getServerTime", function (error, result) {
                Session.set("time", result);
            });
        }, 1000);
    });

    Template.main.time = function () {
        return Session.get("time");
    };
}

if (Meteor.isServer) {
    Meteor.methods({
        getServerTime: function () {
            var _time = (new Date).toTimeString();
            console.log(_time);
            return _time;
        }
    });
}

    And the HTML:

    <body>
  {{> main}}
</body>

<template name="main">
  {{time}}
</template>
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