Ubuntu timezone - Daylight Saving Time

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# Check Time Zone Database (tzdata/zoneinfo)

# List Next Year

$ zdump -v /usr/share/zoneinfo/America/Sao_Paulo

# Filter 2018

$ zdump -v /usr/share/zoneinfo/America/Sao_Paulo | grep 2018

Use zdump to view the information

# If needed update tzdata package

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