DateTime.js 10.0 KB

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  1. /**
  2. * Date and time operations.
  3. *
  4. * @author n1474335 [n1474335@gmail.com]
  5. * @copyright Crown Copyright 2016
  6. * @license Apache-2.0
  7. *
  8. * @namespace
  9. */
  10. var DateTime = module.exports = {
  11. /**
  12. * @constant
  13. * @default
  14. */
  15. UNITS: ["Seconds (s)", "Milliseconds (ms)", "Microseconds (μs)", "Nanoseconds (ns)"],
  16. /**
  17. * From UNIX Timestamp operation.
  18. *
  19. * @param {number} input
  20. * @param {Object[]} args
  21. * @returns {string}
  22. */
  23. runFromUnixTimestamp: function(input, args) {
  24. var units = args[0],
  25. d;
  26. input = parseFloat(input);
  27. if (units === "Seconds (s)") {
  28. d = moment.unix(input);
  29. return d.tz("UTC").format("ddd D MMMM YYYY HH:mm:ss") + " UTC";
  30. } else if (units === "Milliseconds (ms)") {
  31. d = moment(input);
  32. return d.tz("UTC").format("ddd D MMMM YYYY HH:mm:ss.SSS") + " UTC";
  33. } else if (units === "Microseconds (μs)") {
  34. d = moment(input / 1000);
  35. return d.tz("UTC").format("ddd D MMMM YYYY HH:mm:ss.SSS") + " UTC";
  36. } else if (units === "Nanoseconds (ns)") {
  37. d = moment(input / 1000000);
  38. return d.tz("UTC").format("ddd D MMMM YYYY HH:mm:ss.SSS") + " UTC";
  39. } else {
  40. throw "Unrecognised unit";
  41. }
  42. },
  43. /**
  44. * To UNIX Timestamp operation.
  45. *
  46. * @param {string} input
  47. * @param {Object[]} args
  48. * @returns {number}
  49. */
  50. runToUnixTimestamp: function(input, args) {
  51. var units = args[0],
  52. d = moment(input);
  53. if (units === "Seconds (s)") {
  54. return d.unix();
  55. } else if (units === "Milliseconds (ms)") {
  56. return d.valueOf();
  57. } else if (units === "Microseconds (μs)") {
  58. return d.valueOf() * 1000;
  59. } else if (units === "Nanoseconds (ns)") {
  60. return d.valueOf() * 1000000;
  61. } else {
  62. throw "Unrecognised unit";
  63. }
  64. },
  65. /**
  66. * @constant
  67. * @default
  68. */
  69. DATETIME_FORMATS: [
  70. {
  71. name: "Standard date and time",
  72. value: "DD/MM/YYYY HH:mm:ss"
  73. },
  74. {
  75. name: "American-style date and time",
  76. value: "MM/DD/YYYY HH:mm:ss"
  77. },
  78. {
  79. name: "International date and time",
  80. value: "YYYY-MM-DD HH:mm:ss"
  81. },
  82. {
  83. name: "Verbose date and time",
  84. value: "dddd Do MMMM YYYY HH:mm:ss Z z"
  85. },
  86. {
  87. name: "UNIX timestamp (seconds)",
  88. value: "X"
  89. },
  90. {
  91. name: "UNIX timestamp offset (milliseconds)",
  92. value: "x"
  93. },
  94. {
  95. name: "Automatic",
  96. value: ""
  97. },
  98. ],
  99. /**
  100. * @constant
  101. * @default
  102. */
  103. INPUT_FORMAT_STRING: "DD/MM/YYYY HH:mm:ss",
  104. /**
  105. * @constant
  106. * @default
  107. */
  108. OUTPUT_FORMAT_STRING: "dddd Do MMMM YYYY HH:mm:ss Z z",
  109. /**
  110. * @constant
  111. * @default
  112. */
  113. TIMEZONES: ["UTC"].concat(moment.tz.names()),
  114. /**
  115. * Translate DateTime Format operation.
  116. *
  117. * @param {string} input
  118. * @param {Object[]} args
  119. * @returns {html}
  120. */
  121. runTranslateFormat: function(input, args) {
  122. var inputFormat = args[1],
  123. inputTimezone = args[2],
  124. outputFormat = args[3],
  125. outputTimezone = args[4],
  126. date;
  127. try {
  128. date = moment.tz(input, inputFormat, inputTimezone);
  129. if (!date || date.format() === "Invalid date") throw Error;
  130. } catch (err) {
  131. return "Invalid format.\n\n" + DateTime.FORMAT_EXAMPLES;
  132. }
  133. return date.tz(outputTimezone).format(outputFormat);
  134. },
  135. /**
  136. * Parse DateTime operation.
  137. *
  138. * @param {string} input
  139. * @param {Object[]} args
  140. * @returns {html}
  141. */
  142. runParse: function(input, args) {
  143. var inputFormat = args[1],
  144. inputTimezone = args[2],
  145. date,
  146. output = "";
  147. try {
  148. date = moment.tz(input, inputFormat, inputTimezone);
  149. if (!date || date.format() === "Invalid date") throw Error;
  150. } catch (err) {
  151. return "Invalid format.\n\n" + DateTime.FORMAT_EXAMPLES;
  152. }
  153. output += "Date: " + date.format("dddd Do MMMM YYYY") +
  154. "\nTime: " + date.format("HH:mm:ss") +
  155. "\nPeriod: " + date.format("A") +
  156. "\nTimezone: " + date.format("z") +
  157. "\nUTC offset: " + date.format("ZZ") +
  158. "\n\nDaylight Saving Time: " + date.isDST() +
  159. "\nLeap year: " + date.isLeapYear() +
  160. "\nDays in this month: " + date.daysInMonth() +
  161. "\n\nDay of year: " + date.dayOfYear() +
  162. "\nWeek number: " + date.weekYear() +
  163. "\nQuarter: " + date.quarter();
  164. return output;
  165. },
  166. /**
  167. * @constant
  168. */
  169. FORMAT_EXAMPLES: "Format string tokens:\n\n\
  170. <table class='table table-striped table-hover table-condensed table-bordered' style='font-family: sans-serif'>\
  171. <thead>\
  172. <tr>\
  173. <th>Category</th>\
  174. <th>Token</th>\
  175. <th>Output</th>\
  176. </tr>\
  177. </thead>\
  178. <tbody>\
  179. <tr>\
  180. <td><b>Month</b></td>\
  181. <td>M</td>\
  182. <td>1 2 ... 11 12</td>\
  183. </tr>\
  184. <tr>\
  185. <td></td>\
  186. <td>Mo</td>\
  187. <td>1st 2nd ... 11th 12th</td>\
  188. </tr>\
  189. <tr>\
  190. <td></td>\
  191. <td>MM</td>\
  192. <td>01 02 ... 11 12</td>\
  193. </tr>\
  194. <tr>\
  195. <td></td>\
  196. <td>MMM</td>\
  197. <td>Jan Feb ... Nov Dec</td>\
  198. </tr>\
  199. <tr>\
  200. <td></td>\
  201. <td>MMMM</td>\
  202. <td>January February ... November December</td>\
  203. </tr>\
  204. <tr>\
  205. <td><b>Quarter</b></td>\
  206. <td>Q</td>\
  207. <td>1 2 3 4</td>\
  208. </tr>\
  209. <tr>\
  210. <td><b>Day of Month</b></td>\
  211. <td>D</td>\
  212. <td>1 2 ... 30 31</td>\
  213. </tr>\
  214. <tr>\
  215. <td></td>\
  216. <td>Do</td>\
  217. <td>1st 2nd ... 30th 31st</td>\
  218. </tr>\
  219. <tr>\
  220. <td></td>\
  221. <td>DD</td>\
  222. <td>01 02 ... 30 31</td>\
  223. </tr>\
  224. <tr>\
  225. <td><b>Day of Year</b></td>\
  226. <td>DDD</td>\
  227. <td>1 2 ... 364 365</td>\
  228. </tr>\
  229. <tr>\
  230. <td></td>\
  231. <td>DDDo</td>\
  232. <td>1st 2nd ... 364th 365th</td>\
  233. </tr>\
  234. <tr>\
  235. <td></td>\
  236. <td>DDDD</td>\
  237. <td>001 002 ... 364 365</td>\
  238. </tr>\
  239. <tr>\
  240. <td><b>Day of Week</b></td>\
  241. <td>d</td>\
  242. <td>0 1 ... 5 6</td>\
  243. </tr>\
  244. <tr>\
  245. <td></td>\
  246. <td>do</td>\
  247. <td>0th 1st ... 5th 6th</td>\
  248. </tr>\
  249. <tr>\
  250. <td></td>\
  251. <td>dd</td>\
  252. <td>Su Mo ... Fr Sa</td>\
  253. </tr>\
  254. <tr>\
  255. <td></td>\
  256. <td>ddd</td>\
  257. <td>Sun Mon ... Fri Sat</td>\
  258. </tr>\
  259. <tr>\
  260. <td></td>\
  261. <td>dddd</td>\
  262. <td>Sunday Monday ... Friday Saturday</td>\
  263. </tr>\
  264. <tr>\
  265. <td><b>Day of Week (Locale)</b></td>\
  266. <td>e</td>\
  267. <td>0 1 ... 5 6</td>\
  268. </tr>\
  269. <tr>\
  270. <td><b>Day of Week (ISO)</b></td>\
  271. <td>E</td>\
  272. <td>1 2 ... 6 7</td>\
  273. </tr>\
  274. <tr>\
  275. <td><b>Week of Year</b></td>\
  276. <td>w</td>\
  277. <td>1 2 ... 52 53</td>\
  278. </tr>\
  279. <tr>\
  280. <td></td>\
  281. <td>wo</td>\
  282. <td>1st 2nd ... 52nd 53rd</td>\
  283. </tr>\
  284. <tr>\
  285. <td></td>\
  286. <td>ww</td>\
  287. <td>01 02 ... 52 53</td>\
  288. </tr>\
  289. <tr>\
  290. <td><b>Week of Year (ISO)</b></td>\
  291. <td>W</td>\
  292. <td>1 2 ... 52 53</td>\
  293. </tr>\
  294. <tr>\
  295. <td></td>\
  296. <td>Wo</td>\
  297. <td>1st 2nd ... 52nd 53rd</td>\
  298. </tr>\
  299. <tr>\
  300. <td></td>\
  301. <td>WW</td>\
  302. <td>01 02 ... 52 53</td>\
  303. </tr>\
  304. <tr>\
  305. <td><b>Year</b></td>\
  306. <td>YY</td>\
  307. <td>70 71 ... 29 30</td>\
  308. </tr>\
  309. <tr>\
  310. <td></td>\
  311. <td>YYYY</td>\
  312. <td>1970 1971 ... 2029 2030</td>\
  313. </tr>\
  314. <tr>\
  315. <td><b>Week Year</b></td>\
  316. <td>gg</td>\
  317. <td>70 71 ... 29 30</td>\
  318. </tr>\
  319. <tr>\
  320. <td></td>\
  321. <td>gggg</td>\
  322. <td>1970 1971 ... 2029 2030</td>\
  323. </tr>\
  324. <tr>\
  325. <td><b>Week Year (ISO)</b></td>\
  326. <td>GG</td>\
  327. <td>70 71 ... 29 30</td>\
  328. </tr>\
  329. <tr>\
  330. <td></td>\
  331. <td>GGGG</td>\
  332. <td>1970 1971 ... 2029 2030</td>\
  333. </tr>\
  334. <tr>\
  335. <td><b>AM/PM</b></td>\
  336. <td>A</td>\
  337. <td>AM PM</td>\
  338. </tr>\
  339. <tr>\
  340. <td></td>\
  341. <td>a</td>\
  342. <td>am pm</td>\
  343. </tr>\
  344. <tr>\
  345. <td><b>Hour</b></td>\
  346. <td>H</td>\
  347. <td>0 1 ... 22 23</td>\
  348. </tr>\
  349. <tr>\
  350. <td></td>\
  351. <td>HH</td>\
  352. <td>00 01 ... 22 23</td>\
  353. </tr>\
  354. <tr>\
  355. <td></td>\
  356. <td>h</td>\
  357. <td>1 2 ... 11 12</td>\
  358. </tr>\
  359. <tr>\
  360. <td></td>\
  361. <td>hh</td>\
  362. <td>01 02 ... 11 12</td>\
  363. </tr>\
  364. <tr>\
  365. <td><b>Minute</b></td>\
  366. <td>m</td>\
  367. <td>0 1 ... 58 59</td>\
  368. </tr>\
  369. <tr>\
  370. <td></td>\
  371. <td>mm</td>\
  372. <td>00 01 ... 58 59</td>\
  373. </tr>\
  374. <tr>\
  375. <td><b>Second</b></td>\
  376. <td>s</td>\
  377. <td>0 1 ... 58 59</td>\
  378. </tr>\
  379. <tr>\
  380. <td></td>\
  381. <td>ss</td>\
  382. <td>00 01 ... 58 59</td>\
  383. </tr>\
  384. <tr>\
  385. <td><b>Fractional Second</b></td>\
  386. <td>S</td>\
  387. <td>0 1 ... 8 9</td>\
  388. </tr>\
  389. <tr>\
  390. <td></td>\
  391. <td>SS</td>\
  392. <td>00 01 ... 98 99</td>\
  393. </tr>\
  394. <tr>\
  395. <td></td>\
  396. <td>SSS</td>\
  397. <td>000 001 ... 998 999</td>\
  398. </tr>\
  399. <tr>\
  400. <td></td>\
  401. <td>SSSS ... SSSSSSSSS</td>\
  402. <td>000[0..] 001[0..] ... 998[0..] 999[0..]</td>\
  403. </tr>\
  404. <tr>\
  405. <td><b>Timezone</b></td>\
  406. <td>z or zz</td>\
  407. <td>EST CST ... MST PST</td>\
  408. </tr>\
  409. <tr>\
  410. <td></td>\
  411. <td>Z</td>\
  412. <td>-07:00 -06:00 ... +06:00 +07:00</td>\
  413. </tr>\
  414. <tr>\
  415. <td></td>\
  416. <td>ZZ</td>\
  417. <td>-0700 -0600 ... +0600 +0700</td>\
  418. </tr>\
  419. <tr>\
  420. <td><b>Unix Timestamp</b></td>\
  421. <td>X</td>\
  422. <td>1360013296</td>\
  423. </tr>\
  424. <tr>\
  425. <td><b>Unix Millisecond Timestamp</b></td>\
  426. <td>x</td>\
  427. <td>1360013296123</td>\
  428. </tr>\
  429. </tbody>\
  430. </table>",
  431. };