diff --git a/config/default.ts b/config/default.ts
index 9d9be3d8..3b2a8243 100644
--- a/config/default.ts
+++ b/config/default.ts
@@ -1,5 +1,3 @@
-// tslint:disable:no-default-export
-// tslint:disable:no-magic-numbers
 import {
   SCAboutPageContentType,
   SCConfigFile,
@@ -13,21 +11,31 @@ import {readFileSync} from 'fs';
 import path from 'path';
 
 /**
- * Evaluates if a number is within the given range
+ * Generates a range of numbers that represent consecutive calendric months
  *
- * @param number_ The number that should be checked
- * @param range Array of two numbers representing a range (inclusive interval)
+ * @param startMonth The month to start with (inclusive)
+ * @param endMonth The month to end with (inclusive)
  */
-export function inRangeInclusive(number_: number, range: number[]): boolean {
-  return number_ >= range[0] && number_ <= range[1];
+export function yearSlice(startMonth: number, endMonth: number) {
+  let months = [...Array.from({length: 13}).keys()].slice(1);
+  months = [...months, ...months];
+  if (!months.includes(startMonth) || !months.includes(endMonth)) {
+    throw new Error(`Given months not part of a year! Check ${startMonth} or ${endMonth}!`);
+  }
+
+  const startIndex = months.indexOf(startMonth);
+  const endIndex =
+    months.indexOf(endMonth) <= startIndex ? months.lastIndexOf(endMonth) : months.indexOf(endMonth);
+
+  return months.slice(startIndex, endIndex + 1);
 }
 
-const sommerRange = [4, 1];
-const winterRange = [10, 1];
+const sommerRange = yearSlice(3, 8);
+const winterRange = yearSlice(9, 2);
 const month = new Date().getMonth();
 const year = new Date().getFullYear();
 const winterYearOffset = month < winterRange[0] ? -1 : 0;
-const sommerYear = year + (month <= winterRange[1] ? -1 : 0);
+const sommerYear = year + (month <= winterRange[winterRange.length] ? -1 : 0);
 const winterYear = `${year + winterYearOffset}/${(year + 1 + winterYearOffset).toString().slice(-2)}`;
 
 const wsAcronymShort = `WS ${winterYear}`;
@@ -643,10 +651,10 @@ const config: SCConfigFile = {
           factor: 1,
           fields: {
             'academicTerms.acronym': {
-              [ssAcronymShort]: inRangeInclusive(month, sommerRange) ? 1.1 : 1.05,
-              [wsAcronymShort]: inRangeInclusive(month, winterRange) ? 1.1 : 1.05,
-              [ssAcronymLong]: inRangeInclusive(month, sommerRange) ? 1.1 : 1.05,
-              [wsAcronymLong]: inRangeInclusive(month, winterRange) ? 1.1 : 1.05,
+              [ssAcronymShort]: sommerRange.includes(month) ? 1.1 : 1.05,
+              [wsAcronymShort]: winterRange.includes(month) ? 1.1 : 1.05,
+              [ssAcronymLong]: sommerRange.includes(month) ? 1.1 : 1.05,
+              [wsAcronymLong]: winterRange.includes(month) ? 1.1 : 1.05,
             },
           },
           type: SCThingType.AcademicEvent,
diff --git a/test/common.spec.ts b/test/common.spec.ts
index df3272c5..2ec57754 100644
--- a/test/common.spec.ts
+++ b/test/common.spec.ts
@@ -13,21 +13,21 @@
  * You should have received a copy of the GNU Affero General Public License
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
-import {inRangeInclusive} from '../config/default';
+import {yearSlice} from '../config/default';
 import {expect} from 'chai';
 
 describe('Common', function () {
-  describe('inRangeInclusive', function () {
-    it('should provide true if the given number is in the range', function () {
-      expect(inRangeInclusive(1, [1, 3])).to.be.true;
-      expect(inRangeInclusive(2, [1, 3])).to.be.true;
-      expect(inRangeInclusive(1.1, [1, 3])).to.be.true;
-      expect(inRangeInclusive(3, [1, 3])).to.be.true;
+  describe('yearSlice', function () {
+    it('should provide correct ascending month number ranges', function () {
+      expect(yearSlice(1, 12)).to.eql([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]);
     });
 
-    it('should provide false if the given number is not in the range', function () {
-      expect(inRangeInclusive(3.1, [1, 3])).to.be.false;
-      expect(inRangeInclusive(0, [1, 3])).to.be.false;
+    it('should provide correct month number ranges for year rollovers', function () {
+      expect(yearSlice(12, 1)).to.eql([12, 1]);
+    });
+
+    it('should provide correct month number ranges for a whole year', function () {
+      expect(yearSlice(12, 12)).to.eql([12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]);
     });
   });
 });