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I know I need to use a time layout in Go (as shown here https://golang.org/src/time/format.go) but I can't find the layout for an ISO 8601 timestamp.
If it helps, I get the timestamp from the Facebook API. Here is an example timestamp: 2016-07-25T02:22:33+0000
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How to parse datetime in Go. Parse is a function that accepts a string layout and a string value as arguments. Parse parses the value using the provided layout and returns the Time object it represents. It returns an error if the string value specified is not a valid datetime.
ISO 8601 represents date and time by starting with the year, followed by the month, the day, the hour, the minutes, seconds and milliseconds. For example, 2020-07-10 15:00:00.000, represents the 10th of July 2020 at 3 p.m. (in local time as there is no time zone offset specified—more on that below).
Use the getTime() method to convert an ISO date to a timestamp, e.g. new Date(isoStr). getTime() . The getTime method returns the number of milliseconds since the Unix Epoch and always uses UTC for time representation. Copied!
The toISOString() method returns a string in simplified extended ISO format (ISO 8601), which is always 24 or 27 characters long ( YYYY-MM-DDTHH:mm:ss. sssZ or ±YYYYYY-MM-DDTHH:mm:ss. sssZ , respectively). The timezone is always zero UTC offset, as denoted by the suffix Z .
I found this layout to work: "2006-01-02T15:04:05-0700"
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The problem here is that RFC3339 requires the zone offset to be given as "+00:00" (or "Z" in case of UTC) while ISO8601 allows it to be "+0000".
From RFC3339:
[...] time-numoffset = ("+" / "-") time-hour ":" time-minute time-offset = "Z" / time-numoffset [...] full-time = partial-time time-offset date-time = full-date "T" full-time
So instead of the time.RFC3339 layout
"2006-01-02T15:04:05Z07:00"
you have to use:
"2006-01-02T15:04:05Z0700"
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