I am using google earth engine just to print the timestamp here of LANDSAT Image. I am using the geometry of a part of Chennai which is in India.

// Filtering Data with Date and Geometry
var Data2 = LANDSAT.filterBounds(geometry).filterDate('2013-04-09', '2014-04-10');
// Printing Timestamp
print('LANDSAT Metadata', Data2.first().date());
Map.centerObject(geometry, 8);
Map.addLayer(geometry,{color: 'FF0000'},"Chennai");

My question what exactly the printed time does indicate (with respect to UTC (GMT) or Local Time Zone (IST) ).

just in case if you need the import


var LANDSAT = ee.ImageCollection("LANDSAT/LC08/C01/T1_TOA"),
geometry = /* color: #d63000 */ee.Geometry.Polygon(
    [[[80.26491619216495, 13.08801893465061],
      [80.26422954665713, 13.077652181027775],
      [80.28002239333682, 13.08166516962143]]]);

I am using google earth engine only to print the timestamp here of LANDSAT Image and not anyway related to my question.

1 Answer 1


According to the Landsat documentation, "Landsat data acquisition times are expressed in Greenwich Mean Time (GMT) standard."

  • Thanks for the answer. Do you know about timezone of the 3 Hourly TRMM Data Timestamp too? Nov 13, 2018 at 14:45
  • I believe those are also in GMT.
    – lambertj
    Nov 13, 2018 at 14:55
  • Can I have a source so that I can include it in my presentation? Nov 13, 2018 at 14:58
  • 1
    @PrasadThota have you tried looking for a source on your own? Before posting a question here it is expected that you tried to find an answer yourself.
    – Kersten
    Nov 13, 2018 at 20:07
  • @Kersten Yes, I have searched in TRMM Data Users Handbook. But I couldn't find it. Nov 14, 2018 at 3:21

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