Understanding the Time Format Layout: '2006-01-02'
When dealing with time formats in Go using the time.Format method, understanding the meaning of layout strings is crucial. In particular, the format '2006-01-02' has a specific meaning that may not be immediately apparent.
According to the official documentation, any layout string can be used, but the meanings of each symbol within the string vary. The layout '2006-01-02' is a special case that corresponds to the following values:
- '2006': This represents the year, including all four digits.
- '01': This represents the month, padded with a leading zero.
- '02': This represents the day of the month, padded with a leading zero.
Therefore, the layout '2006-01-02' instructs the time.Format method to format the time value as "year-month-day", with each part padded with leading zeros if necessary. For example, if you have a time value representing January 2, 2017, formatting it with this layout will result in the string "2017-01-02".
The full reference time used by time.Parse and time.Format as shown in the documentation is:
Jan 2 15:04:05 2006 MST 1 2 3 4 5 6 -7
This reference time helps clarify how the layout string should be used to represent the desired time format. By following this convention, Go can consistently parse and format time values in the expected manner.
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