diff --git a/src/api/series-api.ts b/src/api/series-api.ts
index a2bcb64ca1..077e2b6e58 100644
--- a/src/api/series-api.ts
+++ b/src/api/series-api.ts
@@ -16,7 +16,7 @@ import { CreatePriceLineOptions, PriceLineOptions } from '../model/price-line-op
 import { RangeImpl } from '../model/range-impl';
 import { Series } from '../model/series';
 import { SeriesPlotRow } from '../model/series-data';
-import { SeriesMarker } from '../model/series-markers';
+import { convertSeriesMarker, SeriesMarker } from '../model/series-markers';
 import {
 	SeriesOptionsMap,
 	SeriesPartialOptionsMap,
@@ -137,8 +137,8 @@ export class SeriesApi<
 		if (dataFirstBarInRange !== null && dataLastBarInRange !== null) {
 			// result.from = dataFirstBarInRange.time.businessDay || dataFirstBarInRange.time.timestamp;
 			// result.to = dataLastBarInRange.time.businessDay || dataLastBarInRange.time.timestamp;
-			result.from = this._horzScaleBehavior.convertInternalToHorzItem(dataFirstBarInRange.time);
-			result.to = this._horzScaleBehavior.convertInternalToHorzItem(dataLastBarInRange.time);
+			result.from = dataFirstBarInRange.originalTime as HorzScaleItem;
+			result.to = dataLastBarInRange.originalTime as HorzScaleItem;
 		}
 
 		return result;
@@ -187,21 +187,15 @@ export class SeriesApi<
 	public setMarkers(data: SeriesMarker<HorzScaleItem>[]): void {
 		checkItemsAreOrdered(data, this._horzScaleBehavior, true);
 
-		const convertedMarkers = data.map((marker: SeriesMarker<HorzScaleItem>) => ({
-			...marker as Omit<SeriesMarker<HorzScaleItem>, 'time' | 'originalTime'>,
-			originalTime: marker.time,
-			time: this._horzScaleBehavior.convertHorzItemToInternal(marker.time),
-		}));
+		const convertedMarkers = data.map((marker: SeriesMarker<HorzScaleItem>) =>
+			convertSeriesMarker<HorzScaleItem, InternalHorzScaleItem>(marker, this._horzScaleBehavior.convertHorzItemToInternal(marker.time), marker.time)
+		);
 		this._series.setMarkers(convertedMarkers);
 	}
 
 	public markers(): SeriesMarker<HorzScaleItem>[] {
 		return this._series.markers().map<SeriesMarker<HorzScaleItem>>((internalItem: SeriesMarker<InternalHorzScaleItem>) => {
-			const { originalTime, time, ...item } = internalItem;
-			return {
-				time: originalTime as HorzScaleItem,
-				...item as Omit<SeriesMarker<InternalHorzScaleItem>, 'time' | 'originalTIme'>,
-			};
+			return convertSeriesMarker<InternalHorzScaleItem, HorzScaleItem>(internalItem, internalItem.originalTime as HorzScaleItem, undefined);
 		});
 	}
 
diff --git a/src/api/time-scale-api.ts b/src/api/time-scale-api.ts
index 7ca99182d1..1778402f06 100644
--- a/src/api/time-scale-api.ts
+++ b/src/api/time-scale-api.ts
@@ -9,8 +9,8 @@ import { clone, DeepPartial } from '../helpers/strict-type-checks';
 
 import { ChartModel } from '../model/chart-model';
 import { Coordinate } from '../model/coordinate';
-import { IHorzScaleBehavior } from '../model/ihorz-scale-behavior';
-import { Logical, LogicalRange, Range, TimePointIndex, TimePointsRange } from '../model/time-data';
+import { IHorzScaleBehavior, InternalHorzScaleItem } from '../model/ihorz-scale-behavior';
+import { Logical, LogicalRange, Range, TimePointIndex } from '../model/time-data';
 import { HorzScaleOptions, TimeScale } from '../model/time-scale';
 
 import {
@@ -78,13 +78,13 @@ export class TimeScaleApi<HorzScaleItem> implements ITimeScaleApi<HorzScaleItem>
 		}
 
 		return {
-			from: this._horzScaleBehavior.convertInternalToHorzItem(timeRange.from),
-			to: this._horzScaleBehavior.convertInternalToHorzItem(timeRange.to),
+			from: timeRange.from.originalTime as HorzScaleItem,
+			to: timeRange.to.originalTime as HorzScaleItem,
 		};
 	}
 
 	public setVisibleRange(range: Range<HorzScaleItem>): void {
-		const convertedRange: TimePointsRange = {
+		const convertedRange: Range<InternalHorzScaleItem> = {
 			from: this._horzScaleBehavior.convertHorzItemToInternal(range.from),
 			to: this._horzScaleBehavior.convertHorzItemToInternal(range.to),
 		};
@@ -149,12 +149,12 @@ export class TimeScaleApi<HorzScaleItem> implements ITimeScaleApi<HorzScaleItem>
 	public coordinateToTime(x: number): HorzScaleItem | null {
 		const timeScale = this._model.timeScale();
 		const timePointIndex = timeScale.coordinateToIndex(x as Coordinate);
-		const timePoint = timeScale.indexToTime(timePointIndex);
+		const timePoint = timeScale.indexToTimeScalePoint(timePointIndex);
 		if (timePoint === null) {
 			return null;
 		}
 
-		return this._horzScaleBehavior.convertInternalToHorzItem(timePoint);
+		return timePoint.originalTime as HorzScaleItem;
 	}
 
 	public width(): number {
diff --git a/src/index.ts b/src/index.ts
index 6cbd8c5fb1..8d697ac2f6 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -19,7 +19,7 @@ export const customSeriesDefaultOptions: CustomSeriesOptions = {
 	...customStyleDefaults,
 };
 
-export { createChart } from './api/create-chart';
+export { createChart, createChartEx } from './api/create-chart';
 
 /**
  * Returns the current version as a string. For example `'3.3.0'`.
diff --git a/src/model/horz-scale-behavior-time/horz-scale-behavior-time.ts b/src/model/horz-scale-behavior-time/horz-scale-behavior-time.ts
index 7e1771510f..d053aaf38a 100644
--- a/src/model/horz-scale-behavior-time/horz-scale-behavior-time.ts
+++ b/src/model/horz-scale-behavior-time/horz-scale-behavior-time.ts
@@ -21,18 +21,19 @@ import { BusinessDay, isBusinessDay, isUTCTimestamp, TickMarkType, TickMarkWeigh
 type TimeConverter = (time: Time) => InternalHorzScaleItem;
 
 function businessDayConverter(time: Time): InternalHorzScaleItem {
+	let businessDay = time;
 	if (isString(time)) {
-		time = stringToBusinessDay(time);
+		businessDay = stringToBusinessDay(time);
 	}
-	if (!isBusinessDay(time)) {
+	if (!isBusinessDay(businessDay)) {
 		throw new Error('time must be of type BusinessDay');
 	}
 
-	const date = new Date(Date.UTC(time.year, time.month - 1, time.day, 0, 0, 0, 0));
+	const date = new Date(Date.UTC(businessDay.year, businessDay.month - 1, businessDay.day, 0, 0, 0, 0));
 
 	return {
 		timestamp: Math.round(date.getTime() / 1000) as UTCTimestamp,
-		businessDay: time,
+		businessDay,
 	} as unknown as InternalHorzScaleItem;
 }
 
@@ -181,11 +182,6 @@ export class HorzScaleBehaviorTime implements IHorzScaleBehavior<Time> {
 		return ensureNotNull(selectTimeConverter(data));
 	}
 
-	public convertInternalToHorzItem(item: InternalHorzScaleItem): Time {
-		const tp = item as unknown as TimePoint;
-		return tp.businessDay ?? tp.timestamp;
-	}
-
 	public key(item: InternalHorzScaleItem | Time): InternalHorzScaleItemKey {
 		// eslint-disable-next-line no-restricted-syntax
 		if (typeof item === 'object' && 'timestamp' in item) {
diff --git a/src/model/ihorz-scale-behavior.ts b/src/model/ihorz-scale-behavior.ts
index f43be98953..228ad34977 100644
--- a/src/model/ihorz-scale-behavior.ts
+++ b/src/model/ihorz-scale-behavior.ts
@@ -61,13 +61,6 @@ export interface IHorzScaleBehavior<HorzScaleItem> {
 	 * @returns InternalHorzScaleItem
 	 */
 	convertHorzItemToInternal(item: HorzScaleItem): InternalHorzScaleItem;
-	/**
-	 * Convert an internal horizontal item into a horizontal scale item.
-	 *
-	 * @param item - item to be converted
-	 * @returns HorzScaleItem
-	 */
-	convertInternalToHorzItem(item: InternalHorzScaleItem): HorzScaleItem;
 	/**
 	 * Creates and returns a converter for changing series data into internal horizontal scale items.
 	 *
diff --git a/src/model/series-markers.ts b/src/model/series-markers.ts
index 71fa296ab0..eb334a5ca9 100644
--- a/src/model/series-markers.ts
+++ b/src/model/series-markers.ts
@@ -52,3 +52,17 @@ export interface SeriesMarker<TimeType> {
 export interface InternalSeriesMarker<TimeType> extends SeriesMarker<TimeType> {
 	internalId: number;
 }
+
+export function convertSeriesMarker<InTimeType, OutTimeType>(sm: SeriesMarker<InTimeType>, newTime: OutTimeType, originalTime?: unknown): SeriesMarker<OutTimeType> {
+	const { time: inTime, originalTime: inOriginalTime, ...values } = sm;
+	/* eslint-disable @typescript-eslint/consistent-type-assertions */
+	const res = {
+		time: newTime,
+		...values,
+	} as SeriesMarker<OutTimeType>;
+	/* eslint-enable @typescript-eslint/consistent-type-assertions */
+	if (originalTime !== undefined) {
+		res.originalTime = originalTime;
+	}
+	return res;
+}
diff --git a/src/model/time-data.ts b/src/model/time-data.ts
index 7b8d71ed43..b4d9607b44 100644
--- a/src/model/time-data.ts
+++ b/src/model/time-data.ts
@@ -36,7 +36,7 @@ export interface Range<T> {
 	to: T;
 }
 
-export type TimePointsRange = Range<InternalHorzScaleItem>;
+export type TimePointsRange = Range<Omit<TimeScalePoint, 'timeWeight'>>;
 
 /**
  * Index for a point on the horizontal (time) scale.
diff --git a/src/model/time-scale.ts b/src/model/time-scale.ts
index 8978d2f3f7..848be880b2 100644
--- a/src/model/time-scale.ts
+++ b/src/model/time-scale.ts
@@ -16,6 +16,7 @@ import { TickMark, TickMarks } from './tick-marks';
 import {
 	Logical,
 	LogicalRange,
+	Range,
 	SeriesItemsIndexesRange,
 	TickMarkWeightValue,
 	TimedValue,
@@ -342,12 +343,12 @@ export class TimeScale<HorzScaleItem> implements ITimeScale {
 		const lastIndex = ensureNotNull(this._lastIndex());
 
 		return {
-			from: ensureNotNull(this.indexToTime(Math.max(firstIndex, from) as TimePointIndex)),
-			to: ensureNotNull(this.indexToTime(Math.min(lastIndex, to) as TimePointIndex)),
+			from: ensureNotNull(this.indexToTimeScalePoint(Math.max(firstIndex, from) as TimePointIndex)),
+			to: ensureNotNull(this.indexToTimeScalePoint(Math.min(lastIndex, to) as TimePointIndex)),
 		};
 	}
 
-	public logicalRangeForTimeRange(range: TimePointsRange): LogicalRange {
+	public logicalRangeForTimeRange(range: Range<InternalHorzScaleItem>): LogicalRange {
 		return {
 			from: ensureNotNull(this.timeToIndex(range.from, true)) as number as Logical,
 			to: ensureNotNull(this.timeToIndex(range.to, true)) as number as Logical,
diff --git a/tests/e2e/coverage/test-cases/chart/horizontal-scale.js b/tests/e2e/coverage/test-cases/chart/horizontal-scale.js
index edabc00696..7264ff113a 100644
--- a/tests/e2e/coverage/test-cases/chart/horizontal-scale.js
+++ b/tests/e2e/coverage/test-cases/chart/horizontal-scale.js
@@ -11,10 +11,6 @@ class HorzScaleBehaviorPrice {
 		return price => price;
 	}
 
-	convertInternalToHorzItem(item) {
-		return item;
-	}
-
 	key(item) {
 		return item;
 	}
diff --git a/tests/e2e/graphics/test-cases/api/series-markers.js b/tests/e2e/graphics/test-cases/api/series-markers.js
index cb849df6ec..ac0992eea2 100644
--- a/tests/e2e/graphics/test-cases/api/series-markers.js
+++ b/tests/e2e/graphics/test-cases/api/series-markers.js
@@ -1,5 +1,19 @@
+function reorderField(obj) {
+	const keys = Object.keys(obj);
+	keys.sort();
+	const res = {};
+	for (const key of keys) {
+		res[key] = obj[key];
+	}
+	return res;
+}
+
+function reorderFieldInArray(arr) {
+	return arr.map(reorderField);
+}
+
 function compare(markers, seriesApiMarkers) {
-	return JSON.stringify(markers) === JSON.stringify(seriesApiMarkers);
+	return JSON.stringify(reorderFieldInArray(markers)) === JSON.stringify(reorderFieldInArray(seriesApiMarkers));
 }
 
 function runTestCase(container) {
@@ -34,5 +48,5 @@ function runTestCase(container) {
 		},
 	});
 
-	console.assert(compare(markers, seriesApiMarkers), `series.markers() should return exactly the same that was provided to series.setMarkers()\n${JSON.stringify(seriesApiMarkers)}`);
+	console.assert(compare(markers, seriesApiMarkers), `series.markers() should return exactly the same that was provided to series.setMarkers()\n${JSON.stringify(seriesApiMarkers)}\n${JSON.stringify(markers)}`);
 }
diff --git a/tests/e2e/graphics/test-cases/horizontal-price-scale.js b/tests/e2e/graphics/test-cases/horizontal-price-scale.js
index 0ee32dc4fd..597bc721f8 100644
--- a/tests/e2e/graphics/test-cases/horizontal-price-scale.js
+++ b/tests/e2e/graphics/test-cases/horizontal-price-scale.js
@@ -11,10 +11,6 @@ class HorzScaleBehaviorPrice {
 		return price => price;
 	}
 
-	convertInternalToHorzItem(item) {
-		return item;
-	}
-
 	key(item) {
 		return item;
 	}