Go Weeks

import "github.com/ianlopshire/go-weeks"

Package weeks provides utilities for working with weeks according to various week definitions.

// Get the interval [start, end) for the first week of 2020 according to ISO8601
start := weeks.ISO8601.WeekStart(2018, 1)
end := weeks.ISO8601.WeekEndExclusive(2018, 1)

fmt.Printf("2018W1 (ISO 8601) = [%v, %v)\n", start, end)
// Output: 2018W1 (ISO 8601) = [2018-01-01 00:00:00 +0000 UTC, 2018-01-08 00:00:00 +0000 UTC)

// Get the interval [start, end] for the first week of 2020 according to ISO8601
start = weeks.ISO8601.WeekStart(2018, 1)
end = weeks.ISO8601.WeekEndInclusive(2018, 1, time.Second)

fmt.Printf("2018W1 (ISO 8601) = [%v, %v]\n", start, end)
// Output: 2018W1 (ISO 8601) = [2018-01-01 00:00:00 +0000 UTC, 2018-01-07 23:59:59 +0000 UTC]

Builtin Week Definitions

The following week definitions are provided by this package:

• ISO 8601 (weeks.ISO8601)
• MySQL mode 0 (weeks.MySQLMode0)
• MySQL mode 1 (weeks.MySQLMode1)
• MySQL mode 2 (weeks.MySQLMode2)
• MySQL mode 3 (weeks.MySQLMode3)
• MySQL mode 4 (weeks.MySQLMode4)
• MySQL mode 5 (weeks.MySQLMode5)
• MySQL mode 6 (weeks.MySQLMode6)
• MySQL mode 7 (weeks.MySQLMode7)