javascript - moment-timezone AmericaSao_Paulo wrong timezone offset - Stack Overflow

I'm getting an error using moment-timezone with America/Sao_Paulo trying to parse date with America/Sao_Paulo offset. I've created this code:

const date = "2019-1-1 23:30";
const format = "YYYY-M-D HH:mm";
const timezone = "America/Sao_Paulo";
const dateMoment = moment.tz(date, format, timezone);

The output of dateMoment is 2019-01-01T23:30:00-02:00 but I expect 2019-01-01T23:30:00-03:00, since America/Sao_Paulo has offset -03:00.

Am I missing something or did I initialize dateMoment wrong?

const date = "2019-1-1 23:30";
const format = "YYYY-M-D HH:mm";
const timezone = "America/Sao_Paulo";
const dateMoment = moment.tz(date, format, timezone);

console.log(dateMoment.format());
console.log(moment.tz(timezone).format('Z'));

<script src=".js/2.10.6/moment.min.js"></script>
<script type="text/javascript" src=".js"></script>

I'm getting an error using moment-timezone with America/Sao_Paulo trying to parse date with America/Sao_Paulo offset. I've created this code:

const date = "2019-1-1 23:30";
const format = "YYYY-M-D HH:mm";
const timezone = "America/Sao_Paulo";
const dateMoment = moment.tz(date, format, timezone);

The output of dateMoment is 2019-01-01T23:30:00-02:00 but I expect 2019-01-01T23:30:00-03:00, since America/Sao_Paulo has offset -03:00.

Am I missing something or did I initialize dateMoment wrong?

const date = "2019-1-1 23:30";
const format = "YYYY-M-D HH:mm";
const timezone = "America/Sao_Paulo";
const dateMoment = moment.tz(date, format, timezone);

console.log(dateMoment.format());
console.log(moment.tz(timezone).format('Z'));

<script src="https://cdnjs.cloudflare./ajax/libs/moment.js/2.10.6/moment.min.js"></script>
<script type="text/javascript" src="http://momentjs./downloads/moment-timezone-with-data.js"></script>

• javascript
• datetime
• momentjs
• moment-timezone

Share Improve this question Follow asked Jun 10, 2019 at 13:27 Pedro ArantesPedro Arantes 5,36955 gold badges2929 silver badges6464 bronze badges 2

• 2 The output is correct, see Sao Paulo DST Changes, the offset in June is -03:00 while the offset is -02:00 in January. – VincenzoC Commented Jun 10, 2019 at 13:32
• This has been fixed in moment/timezone 0.5.27 build. Upgrade your moment-timezone lib/js to see the effect. github./moment/moment-timezone/tree/develop/builds – Dnyaneshwar Harer Commented Jan 30, 2020 at 6:34

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1 Answer 1

Sorted by: Reset to default 4

On January 1st 2019, Sao Paulo was still on Summer Time. It was UTC-2 until February 17th.

Brazil abolished summer time going forward, but that hadn't taken effect yet.