initial: bootstrap from BukidBountyApp base

resources/js/utils/date.js

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+/**
+ * Converts a 24-hour time string to 12-hour format.
+ *
+ * @param {string} time24 - Time in HH:mm or HH:mm:ss format
+ * @returns {string} Time in 12-hour format (e.g. "3:45 PM")
+ *
+ * @example
+ * convertTo12HRTime('14:30') // "2:30 PM"
+ */
+export function convertTo12HRTime(time24) {
+  if (!time24) return ''
+
+  return new Date(`1970-01-01T${time24}Z`).toLocaleTimeString('en-US', {
+    timeZone: 'UTC',
+    hour: 'numeric',
+    minute: 'numeric',
+    hour12: true
+  })
+}
+
+
+/**
+ * Formats a Date object into "Mon DD, YYYY".
+ *
+ * @param {Date} date
+ * @returns {string}
+ *
+ * @example
+ * formatDate(new Date()) // "Jan 31, 2026"
+ */
+export function formatDate(date) {
+  if (!(date instanceof Date)) return ''
+
+  return date.toLocaleDateString('en-US', {
+    month: 'short',
+    day: 'numeric',
+    year: 'numeric'
+  })
+}
+
+
+/**
+ * Returns today's date in GMT+8 timezone in "YYYY-MM-DD" format.
+ *
+ * @returns {string} - Date string in GMT+8
+ *
+ * @example
+ * getDateInGMT8() // "2026-01-31"
+ */
+export function getDateInGMT8() {
+  const now = new Date()
+  const utcTime = now.getTime()
+  const gmt8Offset = 8 * 60 * 60 * 1000
+  const gmt8Time = new Date(utcTime + gmt8Offset)
+
+  return gmt8Time.toISOString().split('T')[0]
+}
+
+
+
+/**
+ * Converts a date-time string into a readable format.
+ *
+ * Supports:
+ * - "YYYY-MM-DD"
+ * - "YYYY-MM-DD HH:mm:ss"
+ * - ISO strings
+ *
+ * @param {string} dateTimeString
+ * @returns {string}
+ *
+ * @example
+ * formatDateTimetoReadable('2026-01-31 14:30')
+ * // "January 31, 2026 2:30PM"
+ */
+export function formatDateTimetoReadable(dateTimeString) {
+  if (!dateTimeString) return ''
+
+  const normalized = dateTimeString.includes(' ')
+    ? dateTimeString.replace(' ', 'T')
+    : dateTimeString
+
+  const date = new Date(normalized)
+  if (isNaN(date.getTime())) return ''
+
+  const datePart = date.toLocaleDateString('en-US', {
+    year: 'numeric',
+    month: 'long',
+    day: 'numeric'
+  })
+
+  // Only show time if original string had time
+  if (!dateTimeString.includes(' ')) {
+    return datePart
+  }
+
+  let hours = date.getHours()
+  const minutes = date.getMinutes()
+  const ampm = hours >= 12 ? 'PM' : 'AM'
+
+  hours = hours % 12 || 12
+  const paddedMinutes = minutes.toString().padStart(2, '0')
+
+  return `${datePart} ${hours}:${paddedMinutes}${ampm}`
+}