fix: Added Zulu support to customParseFormat (#1359)

src/plugin/customParseFormat/index.js

@@ -8,13 +8,14 @@ const match3 = /\d{3}/ // 000 - 999
 const match4 = /\d{4}/ // 0000 - 9999
 const match1to2 = /\d\d?/ // 0 - 99
 const matchSigned = /[+-]?\d+/ // -inf - inf
-const matchOffset = /[+-]\d\d:?(\d\d)?/ // +00:00 -00:00 +0000 or -0000 +00
+const matchOffset = /[+-]\d\d:?(\d\d)?|Z/ // +00:00 -00:00 +0000 or -0000 +00 or Z
 const matchWord = /\d*[^\s\d-_:/()]+/ // Word
 
 let locale = {}
 
 function offsetFromString(string) {
   if (!string) return 0
+  if (string === 'Z') return 0
   const parts = string.match(/([+-]|\d\d)/g)
   const minutes = +(parts[1] * 60) + (+parts[2] || 0)
   return minutes === 0 ? 0 : parts[0] === '+' ? -minutes : minutes // eslint-disable-line no-nested-ternary

test/plugin/customParseFormat.test.js

@@ -109,6 +109,13 @@ describe('Timezone Offset', () => {
     expect(result.valueOf()).toBe(moment(input, format).valueOf())
     expect(result.valueOf()).toBe(1606820400000)
   })
+  it('zulu', () => {
+    const input = '2021-01-26T15:38:43.000Z'
+    const format = 'YYYY-MM-DDTHH:mm:ss.SSSZ'
+    const result = dayjs(input, format)
+    expect(result.valueOf()).toBe(moment(input, format).valueOf())
+    expect(result.valueOf()).toBe(1611675523000)
+  })
   it('no timezone format token should parse in local time', () => {
     const input = '2020-12-01T20:00:00+01:00'
     const format = 'YYYY-MM-DD[T]HH:mm:ss'
@@ -347,3 +354,4 @@ it('parse a string for MMM month format with underscore delimiter', () => {
   const format2 = 'DD_MMM_YYYY_hhmmss'
   expect(dayjs(input2, format2).valueOf()).toBe(moment(input2, format2).valueOf())
 })
+